Inner and outer cylinder hot melting connection device and method for processing fiber rolling brush of sweeping robot

Abstract

The invention discloses an inner cylinder and outer cylinder hot melting connecting device and method for sweeping robot fiber rolling brush machining, and relates to the technical field of sweeping robot machining. The device comprises a processing box, a rolling brush outer cylinder and a rolling brush inner cylinder, and further comprises a bearing plate arranged in the processing box; the positioning unit comprises an erecting assembly and a sealing pushing assembly; the hot melt connecting unit comprises an extrusion assembly and a liquid injection assembly, a sealing liquid injection ring is arranged in the extrusion assembly, and a plurality of liquid injection holes used for injecting hot melt adhesive are formed in the sealing liquid injection ring. The rolling brush has the advantages that the rolling brush outer cylinder and the rolling brush inner cylinder are preliminarily positioned firstly, and then glue is directly injected into the gap between the rolling brush outer cylinder and the rolling brush inner cylinder, so that hot melt glue can be completely filled into the gap between the rolling brush outer cylinder and the rolling brush inner cylinder, and connecting gaps and dead corners are avoided; the situation that the sealant is scraped due to the fact that installation is conducted after gluing is conducted is effectively avoided, and the connection comprehensiveness and stability of the inner cylinder and the outer cylinder of the fiber rolling brush are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sweeping robot processing, and in particular to an inner and outer cylinder hot-melt connection device and method for processing a sweeping robot fiber roller brush. Background Art

[0002] A sweeping robot is a smart home device that detects and cleans dust and garbage in a room through sensors, navigation systems, and intelligent algorithms. During processing, a hot-melt connection device is usually used to inject hot-melt adhesive between the outer roller and the inner roller to complete the tight connection between the outer roller and the inner roller.

[0003] Existing hot melt connection devices use a variety of methods to achieve the connection between the outer cylinder of the roller brush and the inner cylinder of the roller brush, such as a hot melt connection device for inner and outer cylinders used for fiber roller brush processing with publication number CN117429060A, which relates to the technical field of roller brush production and processing, including a bottom plate, a control device is arranged on the bottom plate, a vertical plate is arranged on the bottom plate, the vertical plate is fixedly connected to the bottom plate, two groups of vertical plates are arranged, and heating devices are arranged on the surfaces of the opposite sides of the two vertical plates in the same group, and the heating device is used to heat the outer surface of the inner cylinder; a feeding mechanism and a driving mechanism are arranged on the bottom plate; an inner support mechanism is arranged on the driving mechanism;

[0004] When the existing connection device is connected, hot melt adhesive is usually applied to the inner cylinder first and then the outer cylinder is sleeved on the inner cylinder for fixing. This fixing method makes it inevitable that the inner wall of the outer cylinder will be scratched on the inner cylinder when the outer cylinder is sleeved on the inner cylinder, which is easy to scrape off the hot melt adhesive already applied on the inner cylinder, resulting in a gap area of ​​the hot melt adhesive on the outside of the inner cylinder, affecting the overall connection stability. For example, the above-mentioned referenced prior art adopts the cooperation of the inner cylinder feeding component and the outer cylinder feeding component, and the outer cylinder is directly sleeved after the inner cylinder is coated, so that the hot melt adhesive on the outside of the inner cylinder will be scraped off during the sleeve, resulting in a gap in the hot melt adhesive between the inner and outer cylinders, that is, there is no hot melt adhesive in some areas between the inner and outer cylinders, resulting in the inability to connect the inner and outer cylinders tightly, which has certain limitations;

[0005] Therefore, it is urgent to design an inner and outer cylinder hot-melt connection device and method for processing the fiber roller brush of a sweeping robot to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an inner and outer cylinder hot-melt connection device and method for processing a fiber roller brush of a sweeping robot, which solves the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hot-melt connection device for inner and outer cylinders used for processing fiber roller brushes of sweeping robots, comprising a processing box and a roller brush outer cylinder and a roller brush inner cylinder used to form a fiber roller brush cylinder of a sweeping robot, and also comprising:

[0008] A carrying plate is arranged in the processing box;

[0009] The positioning unit is arranged on the bearing plate, and includes a mounting assembly and a sealing push assembly, wherein a plurality of supporting plates for positioning the inner cylinder of the roller brush are arranged in the mounting assembly, and a sealing ring is arranged in the sealing push assembly, and the support and hot-melt sealing between the inner cylinder of the roller brush and the outer cylinder of the roller brush are achieved through the support of the sealing ring;

[0010] The hot melt connection unit is arranged in the processing box, and includes an extrusion component and an injection component, wherein a sealed injection ring is arranged in the extrusion component, and a plurality of injection holes for injecting hot melt adhesive are arranged on the sealed injection ring. The injection component is used to inject a certain amount of hot melt adhesive into between the inner cylinders of the roller brush through the injection holes, and cooperate with the sealing ring to realize the comprehensive sealed injection of the hot melt adhesive.

[0011] Preferably, a lifting and opening and closing door is slidably installed on the outside of the processing box, and an observation window is provided on the lifting and opening and closing door, and the lifting and opening and closing door is used to seal the processing box and facilitate the placement and removal of the roller brush inner cylinder and the roller brush outer cylinder;

[0012] A plurality of heat dissipation pipes for heat dissipation and ventilation are arranged outside the processing box.

[0013] Preferably, the mounting assembly includes a fixed platform fixedly mounted on the supporting plate, a supporting plate fixedly mounted on the fixed platform, an inner supporting rod fixedly mounted on the supporting plate, and the inner cylinder of the roller brush is sleeved on the inner supporting rod, and a fixing mechanism is mounted on the inner supporting rod.

[0014] Preferably, the fixing mechanism includes a squeezing ring slidably installed in the inner support rod, and hydraulic oil is filled between the inner wall of the inner support rod and the squeezing ring, a hydraulic push rod is fixedly installed in the inner support rod, and the squeezing ring is fixedly installed on the driving end of the hydraulic push rod, and a plurality of support abutment plates are fixedly installed on the inner support rod through a plurality of elastic telescopic rods, and a piston pusher is fixedly connected between each support abutment plate and the inner support rod.

[0015] Preferably, the sealing push assembly includes a support plate fixedly mounted on the support plate, a plurality of compression springs fixedly mounted on the support plate, and a sealing ring fixedly mounted on the plurality of compression springs, and the inner ring of the sealing ring fits with the outer wall of the inner cylinder of the roller brush, and the inner wall of the outer cylinder of the roller brush is sleeved on the outside of the sealing ring.

[0016] Preferably, the extrusion assembly includes a servo motor fixedly mounted on the bottom of the processing box, a driving roller is fixedly mounted on the driving end of the servo motor, a fixed platform 2 is fixedly mounted on the carrying plate, a pushing disk is fixedly mounted on the fixed platform 2 via a telescopic column, a pushing mechanism is installed between the pushing disk and the driving roller, and a positioning plate that cooperates with the outer cylinder of the roller brush is fixedly mounted on the pushing disk via a plurality of extrusion spring rods.

[0017] Preferably, the pushing mechanism includes a threaded rod fixedly mounted on the driving roller, a threaded limiting plate is threadedly mounted on the threaded rod, a traction rod is slidably mounted between the threaded limiting plate and the bearing plate, and the pushing disk is fixedly mounted on the upper end of the traction rod.

[0018] Preferably, the liquid injection assembly comprises a liquid storage box fixedly installed in the processing box, and hot melt adhesive is stored in the liquid storage box, a liquid push plate for squeezing liquid is slidably installed in the liquid storage box, and a linkage mechanism is installed between the liquid push plate and the traction rod, and a heating mesh plate for heating the hot melt adhesive is fixedly installed in the liquid storage box;

[0019] A sealing liquid injection ring is fixedly installed on the positioning plate, and the size of the sealing liquid injection ring is the same as that of the sealing ring. An elastic liquid guide tube is fixedly connected between the sealing liquid injection ring and the liquid storage tank, and a liquid replenishing tube for replenishing hot melt adhesive is fixedly connected to the liquid storage tank.

[0020] Preferably, the linkage mechanism includes a linkage rod slidably mounted between the liquid storage tank and the liquid pushing plate, an electromagnetic engaging column is fixedly mounted on the traction rod, an electromagnetic engaging piece is fixedly mounted on the linkage rod, and the electromagnetic engaging piece is engaged with the electromagnetic engaging column.

[0021] Preferably, the method for hot-melt connection of inner and outer cylinders for processing fiber roller brushes of sweeping robots is used for the above-mentioned hot-melt connection device of inner and outer cylinders for processing fiber roller brushes of sweeping robots, comprising the following steps:

[0022] S1, insert the inner cylinder of the roller brush into the positioning unit and position it through the mounting assembly;

[0023] S2, sleeve the outer roller brush cylinder onto the outside of the inner roller brush cylinder, and control the distance between the outer roller brush cylinder and the inner roller brush cylinder by the sealing ring in the sealing push assembly;

[0024] S3, starting the extrusion assembly in the hot melt connection unit to perform secondary positioning on the outer cylinder of the roller brush;

[0025] S4, start the injection assembly to heat the hot melt adhesive and inject it into the space between the roller brush outer cylinder and the roller brush inner cylinder through the multiple injection holes on the sealed injection ring, and wait for the hot melt adhesive to cool and solidify to complete the hot melt connection.

[0026] The present invention provides a device and method for hot-melt connection of inner and outer cylinders for processing fiber roller brushes of sweeping robots. It has the following beneficial effects:

[0027] 1. When the hot melt connecting device is connecting the inner and outer cylinders, after the inner and outer cylinders are positioned, the hot melt adhesive is directly injected into the gap between the roller brush inner cylinder and the roller brush outer cylinder through the cooperation of the injection assembly. There is no need to apply hot melt adhesive on the roller brush inner cylinder in advance, and the installation of the roller brush outer cylinder will not have a negative impact on the hot melt fixation.

[0028] 2. When the hot melt connection device is connecting the inner and outer cylinders, when the hot melt adhesive is injected, the sealing ring can be automatically pushed to move as the injection amount of the hot melt adhesive increases, so that the hot melt adhesive is completely filled between the roller brush inner cylinder and the roller brush outer cylinder, and there will be no glue injection gaps and dead corners. The saturated glue injection and fixation between the roller brush inner cylinder and the roller brush outer cylinder can be achieved, and the connection effect is better.

[0029] 3. When the hot melt connection device is connecting the inner and outer cylinders, the cooperation of the extrusion component and the injection component can not only realize the extrusion positioning of the outer cylinder of the roller brush to improve the stability of the hot melt connection, but also can simultaneously perform the injection of hot melt adhesive after the positioning is completed, effectively improving the efficiency of the connection and fixation.

[0030] To sum up, the present invention adopts a connection method of first performing preliminary positioning of the roller brush outer cylinder and the roller brush inner cylinder, and then directly injecting glue into the gap between the two, which can make the hot melt adhesive completely fill between the roller brush outer cylinder and the roller brush inner cylinder, and there will be no connection gaps and dead corners, effectively avoiding the situation where the sealant is scraped off due to applying the glue first and then installing it, and effectively improving the comprehensiveness and stability of the connection between the inner and outer cylinders of the fiber roller brush.

[0031] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0033] Figure 1 This is a schematic structural diagram of the inner and outer cylinder hot-melt connection device for processing the fiber roller brush of a sweeping robot proposed by the present invention;

[0034] Figure 2 for Figure 1 Structural diagram of the processing box after the middle lifting door is opened;

[0035] Figure 3 for Figure 1 Schematic diagram of the internal structure of the processing box;

[0036] Figure 4 for Figure 3 Schematic diagram of the structure after removing the processing box;

[0037] Figure 5 for Figure 4 A schematic diagram of the structure between the outer cylinder of the middle roller brush and the fixed platform 1;

[0038] Figure 6 for Figure 5Schematic diagram of the structural breakdown of the middle roller brush outer cylinder and the supporting plate;

[0039] Figure 7 for Figure 6 Schematic diagram of the upper structure of the middle inner support rod;

[0040] Figure 8 for Figure 7 Schematic diagram of the exploded structure of the inner support rod;

[0041] Fig. 9 for Figure 4 Structural diagram of the servo motor and the push plate;

[0042] Fig.10 for Fig. 9 Schematic diagram of the structure after rotating a certain angle;

[0043] Fig.11 for Fig. 9 Schematic diagram of the structure of the servo motor and positioning plate;

[0044] Fig.12 for Fig.10 Schematic diagram of the structure of the servo motor and the liquid storage tank;

[0045] Fig.13 for Fig.12 Schematic diagram of the internal structure of the middle liquid storage tank;

[0046] Fig.14 for Fig.13 Schematic diagram of the structural breakdown of the middle traction rod and linkage rod;

[0047] Fig.15 It is a structural front view of the roller brush outer cylinder and the roller brush inner cylinder during hot melt glue injection in the present invention.

[0048] In the figure: 1 processing box, 2 lifting opening and closing door, 3 heat dissipation pipe, 4 liquid replenishing pipe, 5 roller brush outer cylinder, 6 fixed platform one, 7 liquid storage tank, 8 servo motor, 9 bearing plate, 10 support plate, 11 push plate, 12 roller brush inner cylinder, 13 support plate, 14 sealing ring, 15 inner support rod, 16 support plate, 17 piston push member, 18 compression spring, 19 hydraulic push rod, 20 squeeze ring, 21 threaded rod, 22 threaded limit plate, 23 positioning plate, 24 squeeze spring rod, 25 elastic liquid guide tube, 26 sealing liquid injection ring, 27 liquid injection hole, 28 traction rod, 29 driving roller, 30 liquid push plate, 31 heating mesh plate, 32 linkage rod, 33 electromagnetic clamping column, 34 electromagnetic clamping member, 35 fixed platform two, 36 telescopic column. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0050] Example 1: Reference Figure 1-Figure 3 The invention discloses an inner and outer cylinder hot-melt connection device for processing a fiber roller brush of a sweeping robot, comprising a processing box 1 and an outer roller brush cylinder 5 and an inner roller brush cylinder 12 for constituting a fiber roller brush cylinder of a sweeping robot. Hot melt adhesive is filled between the outer roller brush cylinder 5 and the inner roller brush cylinder 12. After the hot melt adhesive is cooled and solidified, the connection and fixation between the inner roller brush cylinder 12 and the outer roller brush cylinder 5 is completed.

[0051] The inner and outer tube hot-melt connection device also includes:

[0052] The carrying plate 9 is arranged in the processing box 1, and is used to separate the internal area of ​​the processing box 1, so that the hot-melt connection area of ​​the roller brush outer cylinder 5 and the roller brush inner cylinder 12 is an independent area, which will not be interfered by other components inside the processing box 1;

[0053] The positioning unit is arranged on the supporting plate 9, and is used for performing preliminary positioning on the roller brush inner cylinder 12 so that it remains stable during hot melt connection, and at the same time completing the preliminary positioning between the roller brush inner cylinder 12 and the roller brush outer cylinder 5, limiting the preliminary position of the roller brush outer cylinder 5, and reserving a gap between the roller brush outer cylinder 5 and the roller brush inner cylinder 12 to be filled with hot melt adhesive.

[0054] The hot melt connection unit is arranged in the processing box 1, and is used to complete the secondary fixation of the roller brush outer cylinder 5, ensure the stability of the hot melt connection process, and automatically complete the injection of hot melt adhesive into the gap between the roller brush outer cylinder 5 and the roller brush inner cylinder 12. At the same time, the injection amount of the hot melt adhesive is controlled to ensure that there is no filling dead angle in the gap between the roller brush outer cylinder 5 and the roller brush inner cylinder 12, thereby effectively improving the stability of the connection and fixation.

[0055] The processing box 1 is externally slidably mounted with a lifting and opening and closing door 2, and an observation window is provided on the lifting and opening and closing door 2, and the installation and hot-melt connection of the roller brush outer cylinder 5 and the roller brush inner cylinder 12 can be observed through the observation window, so as to facilitate real-time adjustment. The lifting and opening and closing door 2 is used to seal the processing box 1 and facilitate the placement and removal of the roller brush inner cylinder 12 and the roller brush outer cylinder 5;

[0056] A plurality of heat dissipation pipes 3 for heat dissipation and ventilation are arranged on the outside of the processing box 1. The heat dissipation efficiency of the roller brush outer cylinder 5 and the roller brush inner cylinder 12 in the processing box 1 is improved through the heat dissipation pipes 3. A temperature sensor is arranged in the processing box 1. The temperature sensor is used to monitor the temperature of the roller brush outer cylinder 5 and the roller brush inner cylinder 12 in real time, so as to judge whether the hot melt adhesive in the roller brush outer cylinder 5 and the roller brush inner cylinder 12 is completely cooled and solidified.

[0057] Example 2: Reference Figure 2-Figure 8 as well as Fig.15 The technical solution of this embodiment is different from that of the first embodiment in that: the positioning unit includes a mounting assembly and a sealing push assembly, wherein the mounting assembly is provided with a plurality of supporting plates 16 for positioning the roller brush inner cylinder 12, and the sealing push assembly is provided with a sealing ring 14, and the support and hot-melt sealing between the roller brush inner cylinder 12 and the roller brush outer cylinder 5 are achieved through the support of the sealing ring 14;

[0058] The mounting assembly includes a fixed platform 6 fixedly mounted on the bearing plate 9, a support plate 10 fixedly mounted on the fixed platform 6, an inner support rod 15 fixedly mounted on the support plate 10, and a roller brush inner cylinder 12 is sleeved on the inner support rod 15. When the roller brush inner cylinder 12 is hot-melt-connected with the roller brush outer cylinder 5, the lifting and closing door 2 is first opened, and then the roller brush inner cylinder 12 is sleeved on the inner support rod 15 for preliminary limiting.

[0059] A fixing mechanism is installed on the inner support rod 15, and the fixing mechanism includes a squeeze ring 20 slidably installed in the inner support rod 15, and the space between the inner wall of the inner support rod 15 and the squeeze ring 20 is filled with hydraulic oil, a hydraulic push rod 19 is fixedly installed in the inner support rod 15, and the squeeze ring 20 is fixedly installed on the driving end of the hydraulic push rod 19, and a plurality of support plates 16 are fixedly installed on the inner support rod 15 through a plurality of elastic telescopic rods, and a piston pusher 17 is fixedly connected between each support plate 16 and the inner support rod 15;

[0060] After the roller brush inner cylinder 12 is sleeved, the hydraulic push rod 19 is started to drive the squeeze ring 20 to move. When the squeeze ring 20 moves, it squeezes the hydraulic oil in the inner support rod 15 to make it pour into multiple piston push members 17. When the hydraulic oil in the piston push member 17 increases, its end will be pushed out, thereby pushing the corresponding support plate 16 to move, and multiple support plates 16 can be pushed out at the same time to make them fit tightly with the inner wall of the roller brush inner cylinder 12, so that the roller brush inner cylinder 12 can be tightly fixed, so that it can remain stable when welded and fixed;

[0061] The multiple elastic telescopic rods play a resetting role. After the hot-melt fixation of the roller brush inner cylinder 12 is completed, the hydraulic push rod 19 drives the squeeze ring 20 to move in the opposite direction and reset, so that the hydraulic oil in the multiple piston push members 17 can be sucked back into the squeeze ring 20. At this time, the multiple elastic telescopic rods will automatically shrink when the pressure is reduced, thereby driving the support plate 16 to reset, so that the support plate 16 is separated from the inner wall of the roller brush inner cylinder 12, and the positioning of the roller brush inner cylinder 12 is released. At this time, the roller brush inner cylinder 12 can be directly disassembled and taken out.

[0062] In a further embodiment, the sealing push assembly includes a support plate 13 fixedly mounted on the support plate 10, a plurality of compression springs 18 are fixedly mounted on the support plate 13, and a sealing ring 14 is fixedly mounted on the plurality of compression springs 18, and the inner ring of the sealing ring 14 is in contact with the outer wall of the roller brush inner cylinder 12, and the inner wall of the roller brush outer cylinder 5 is sleeved on the outside of the sealing ring 14;

[0063] After the roller brush inner cylinder 12 is positioned, the sealing ring 14 is at the left end of the roller brush inner cylinder 12 under the pushing action of the plurality of compression springs 18 (see the attached manual). Fig.15 The inner ring wall of the sealing ring 14 fits with the outer wall of the roller brush inner cylinder 12, and the roller brush outer cylinder 5 is inserted into the outer part of the roller brush inner cylinder 12 as a whole, and the inner wall of the roller brush outer cylinder 5 fits with the outer ring of the sealing ring 14, thereby completing the preliminary positioning of the roller brush outer cylinder 5;

[0064] At this time, the sealing ring 14 is just located between the roller brush inner cylinder 12 and the roller brush outer cylinder 5, and the ring shape of the sealing ring 14 is the same as the gap between the roller brush inner cylinder 12 and the roller brush outer cylinder 5, so that when the hot melt adhesive is injected into the gap between the roller brush inner cylinder 12 and the roller brush outer cylinder 5 from the left side, the hot melt adhesive will be blocked by the sealing ring 14 and will not flow to the right side of the sealing ring 14, thereby completing the sealing of the gap between the roller brush inner cylinder 12 and the roller brush outer cylinder 5.

[0065] The sealing ring 14, multiple compression springs 18 and the support plate 13 are detachably arranged as a whole. In actual use, sealing rings 14 of different sizes can be flexibly selected according to the sizes of the roller brush inner cylinder 12 and the roller brush outer cylinder 5 to be hot-melt connected, so that the sealing ring 14 can be adapted to the roller brush inner cylinder 12 and the roller brush outer cylinder 5 of different sizes, thereby improving the overall applicability of the device.

[0066] Example 3: Reference Figure 2-Figure 4 as well as Figure 9-Figure 15 The technical solution of this embodiment is different from that of the second embodiment in that: the hot melt connection unit includes an extrusion component and an injection component, wherein a sealing injection ring 26 is provided in the extrusion component, and a plurality of injection holes 27 for injecting hot melt adhesive are provided on the sealing injection ring 26, and the injection component is used to inject a certain amount of hot melt adhesive into the space between the roller brush inner cylinder 12 and the roller brush inner cylinder 12 through the injection hole 27, and cooperate with the sealing ring 14 to realize the comprehensive sealing injection of the hot melt adhesive;

[0067] The extrusion assembly includes a servo motor 8 fixedly mounted on the bottom of the processing box 1, a driving roller 29 is fixedly mounted on the driving end of the servo motor 8, a fixed table 2 35 is fixedly mounted on the carrier plate 9, and a push plate 11 is fixedly mounted on the fixed table 2 35 via a telescopic column 36, and the push plate 11 is fixedly connected to the fixed table 2 35 via the telescopic column 36, so that the push plate 11 can only move in the horizontal direction and will not deviate in other directions.

[0068] A pushing mechanism is installed between the pushing plate 11 and the driving roller 29, and the pushing mechanism includes a threaded rod 21 fixedly installed on the driving roller 29, a threaded limiting plate 22 is threadedly installed on the threaded rod 21, and a traction rod 28 is slidably installed between the threaded limiting plate 22 and the bearing plate 9, and the pushing plate 11 is fixedly installed on the upper end of the traction rod 28;

[0069] When the servo motor 8 is started, the driving roller 29 on the driving end thereof will be driven to rotate, and the rotation of the driving roller 29 will drive the threaded rod 21 to rotate. When the servo motor 8 drives the driving roller 29 to rotate in the positive direction, the threaded rod 21 will be driven to rotate in the positive direction. The threaded limiting plate 22 is threadedly connected with the threaded rod 21, and the threaded limiting plate 22 can only move horizontally under the limiting action of the bearing plate 9, so that when the threaded rod 21 rotates in the positive direction, the threaded limiting plate 22 will be driven to move in the positive direction to the right (see the attached manual). Fig. 9 When the threaded stop plate 22 moves rightward, the traction rod 28 will be driven to move rightward;

[0070] On the contrary, when the servo motor 8 drives the threaded rod 21 to rotate in the opposite direction, the threaded limiting plate 22 will be driven to move in the opposite direction to the left, thereby driving the traction rod 28 to move in the opposite direction to the left.

[0071] In a further embodiment, a positioning plate 23 cooperating with the roller brush outer cylinder 5 is fixedly mounted on the push disk 11 through a plurality of extrusion spring rods 24. When the traction rod 28 is moving rightward, the push disk 11 is driven to move rightward. When the push disk 11 is moved rightward until the positioning plate 23 thereon is squeezed against the outer wall of the roller brush outer cylinder 5, the traction rod 28 continues to move rightward to drive the push disk 11 to move rightward. At this time, the positioning plate 23 is blocked by the roller brush outer cylinder 5 and cannot continue to move.

[0072] When the push disk 11 moves, it will squeeze the multiple extrusion spring rods 24 to compress them, and the positioning plate 23 and the roller brush outer cylinder 5 will be pressurized through the resetting effect of the multiple extrusion spring rods 24, so that the roller brush outer cylinder 5 is firmly clamped between the supporting plate 10 and the positioning plate 23, completing the secondary positioning of the roller brush outer cylinder 5, and further improving the stability of the hot melt connection process of the roller brush outer cylinder 5 and the roller brush inner cylinder 12.

[0073] In a further embodiment, the liquid injection component includes a liquid storage tank 7 fixedly installed in the processing box 1, and hot melt adhesive is stored in the liquid storage tank 7. A liquid pushing plate 30 for squeezing liquid is slidably installed in the liquid storage tank 7. A liquid replenishing tube 4 for replenishing the hot melt adhesive is fixedly connected to the liquid storage tank 7, and the hot melt adhesive in the liquid storage tank 7 is automatically replenished through the liquid replenishing tube 4.

[0074] A linkage mechanism is installed between the liquid pushing plate 30 and the traction rod 28, and the linkage mechanism includes a linkage rod 32 slidably installed between the liquid storage tank 7 and the liquid pushing plate 30, an electromagnetic clamping column 33 is fixedly installed on the traction rod 28, and an electromagnetic clamping member 34 is fixedly installed on the linkage rod 32, and the electromagnetic clamping member 34 is clamped with the electromagnetic clamping column 33;

[0075] When the positioning plate 23 squeezes the roller brush outer cylinder 5 and cannot move, the servo motor 8 drives the threaded rod 21 to continue to rotate forward, which will drive the threaded limit plate 22 to continue to move rightward. The threaded limit plate 22 moves rightward, which will drive the traction rod 28 to move rightward. When the traction rod 28 moves rightward, it will drive the electromagnetic engaging column 33 on it to move, and during the movement, the electromagnetic engaging column 33 is gradually engaged with the electromagnetic engaging member 34 in the linkage rod 32.

[0076] After the electromagnetic clamping column 33 is clamped into the electromagnetic clamping part 34, the electromagnetic clamping column 33 and the electromagnetic clamping part 34 are started synchronously, so that the electromagnetic clamping column 33 and the electromagnetic clamping part 34 generate magnetic attraction and are tightly adsorbed and fixed, so that the electromagnetic clamping column 33 and the electromagnetic clamping part 34 are magnetically attracted to form a whole. At this time, when the electromagnetic clamping column 33 moves, it will drive the electromagnetic clamping part 34 to move synchronously;

[0077] After the electromagnetic engaging column 33 and the electromagnetic engaging member 34 are fixed, they will continue to move rightward under the action of the traction rod 28. At this time, the electromagnetic engaging column 33 drives the electromagnetic engaging member 34 to move, which will drive the linkage rod 32 to move. When the linkage rod 32 moves, it will drive the liquid pushing plate 30 to move in the liquid storage tank 7.

[0078] In a further embodiment, a sealing injection ring 26 is fixedly mounted on the positioning plate 23, and the size of the sealing injection ring 26 is the same as that of the sealing ring 14, an elastic liquid guide tube 25 is fixedly connected between the sealing injection ring 26 and the liquid storage tank 7, and a heating mesh plate 31 for heating the hot melt adhesive is fixedly mounted in the liquid storage tank 7;

[0079] The sealing injection ring 26 moves synchronously with the movement of the positioning plate 23. When the positioning plate 23 moves to be pressed and fitted with the roller brush outer cylinder 5, the sealing injection ring 26 will be synchronously engaged with the gap between the roller brush outer cylinder 5 and the roller brush inner cylinder 12, forming the same state as the sealing ring 14, and at this time, the sealing injection ring 26 is on the left side of the sealing ring 14 (see the attached manual). Fig.15 As shown), the sealing injection ring 26 cooperates with the sealing ring 14 to complete the synchronous sealing of the two ends of the gap between the roller brush outer cylinder 5 and the roller brush inner cylinder 12, so that a closed space is formed between the sealing injection ring 26, the sealing ring 14 and the roller brush outer cylinder 5 and the roller brush inner cylinder 12.

[0080] When the liquid push plate 30 moves, it squeezes the hot melt adhesive in the liquid storage tank 7, and at the same time, the heating mesh plate 31 in the liquid storage tank 7 starts to heat the hot melt adhesive in the liquid storage tank 7. When the liquid push plate 30 squeezes the hot melt adhesive, it presses it into the sealing injection ring 26 through the elastic liquid guide tube 25;

[0081] The hot melt adhesive in the sealing injection ring 26 will be directly injected into the gap between the roller brush outer cylinder 5 and the roller brush inner cylinder 12 through the multiple injection holes 27 thereon, and as the amount of hot melt adhesive injected increases, the sealing ring 14 will be gradually pushed to move to the right (see the attached manual). Fig.15 The hot melt adhesive is completely filled, and after waiting for a period of time for the hot melt adhesive to cool and solidify, the hot melt connection and fixation of the roller brush outer cylinder 5 and the roller brush inner cylinder 12 are completed.

[0082] Since there is a closed space between the sealing ring 14 and the sealing injection ring 26, when the hot melt adhesive is injected into the gap between the two, the hot melt adhesive can push the sealing ring 14 to move right only after the gap between the two is completely filled. If the hot melt adhesive is not filled, continuing to inject the hot melt adhesive will only fill the gap first, and will not push the sealing ring 14 to move under the premise of the existence of the gap. Therefore, when the sealing ring 14 moves, the space between it and the sealing injection ring 26 is always filled with hot melt adhesive.

[0083] By continuously injecting liquid through the multiple annular injection holes 27 on the sealed injection ring 26, there will be no gaps or dead corners in the gap between the roller brush outer cylinder 5 and the roller brush inner cylinder 12, so that the roller brush outer cylinder 5 and the roller brush inner cylinder 12 are completely connected and fixed by hot melt adhesive, the connection and fixation are more stable, the hot melt adhesive is filled more fully, and the connection effect is better.

[0084] The working principle of this hot melt connection device is:

[0085] First, open the lifting and closing door 2, then sleeve the roller brush inner cylinder 12 onto the inner support rod 15 for preliminary positioning, start the hydraulic push rod 19 to drive the squeeze ring 20 to move, and the squeeze ring 20 moves to squeeze the hydraulic oil in the inner support rod 15 to make it flow into multiple piston push members 17. When the hydraulic oil in the piston push member 17 increases, it will push the corresponding support plate 16 to move, and the multiple support plates 16 can be pushed out at the same time to make them fit tightly with the inner wall of the roller brush inner cylinder 12, completing the tight fixation of the roller brush inner cylinder 12;

[0086] After the roller brush inner cylinder 12 is positioned, the roller brush outer cylinder 5 is inserted into the outer part of the roller brush inner cylinder 12 as a whole, and the inner wall of the roller brush outer cylinder 5 is fitted with the outer ring of the sealing ring 14 to complete the preliminary positioning of the roller brush outer cylinder 5.

[0087] When the servo motor 8 is started, it will drive the driving roller 29 on its driving end to rotate. The rotation of the driving roller 29 drives the threaded rod 21 to rotate forward. The forward rotation of the threaded rod 21 drives the threaded limit plate 22 and the traction rod 28 to move forward to the right. The forward movement of the traction rod 28 to the right drives the push disk 11 to move right. When the push disk 11 moves to the right and the positioning plate 23 thereon is squeezed against the outer wall of the roller brush outer cylinder 5, it cannot move. At this time, the positioning plate 23 cooperates with the support plate 10 to firmly clamp the roller brush outer cylinder 5 between the support plate 10 and the positioning plate 23, thereby completing the secondary positioning of the roller brush outer cylinder 5.

[0088] The sealing liquid injection ring 26 moves synchronously with the movement of the positioning plate 23. When the positioning plate 23 moves to be pressed and fitted with the roller brush outer cylinder 5, the sealing liquid injection ring 26 will be synchronously engaged with the gap between the roller brush outer cylinder 5 and the roller brush inner cylinder 12, so that a closed space is formed between the sealing liquid injection ring 26, the sealing ring 14 and the roller brush outer cylinder 5 and the roller brush inner cylinder 12.

[0089] When the positioning plate 23 squeezes the roller brush outer cylinder 5 and cannot move, the servo motor 8 drives the threaded rod 21 to continue to rotate forward to drive the threaded limiting plate 22 to continue to move rightward, and the threaded limiting plate 22 moves rightward to drive the traction rod 28 to move rightward, and drives the linkage rod 32 to move rightward through the cooperation of the linkage mechanism, and the linkage rod 32 moves to drive the liquid pushing plate 30 to move in the liquid storage tank 7;

[0090] When the liquid pushing plate 30 moves, it will squeeze the hot melt adhesive in the liquid storage tank 7. At the same time, the heating mesh plate 31 will start to heat the hot melt adhesive in the liquid storage tank 7. The liquid pushing plate 30 squeezes the hot melt adhesive, that is, it will be pressed into the sealing liquid injection ring 26 through the elastic liquid guide tube 25. The hot melt adhesive in the sealing liquid injection ring 26 will be directly injected into the gap between the roller brush outer cylinder 5 and the roller brush inner cylinder 12 through the multiple liquid injection holes 27 thereon, and as the injection amount of the hot melt adhesive increases, the sealing ring 14 will be gradually pushed to move to the right, until the sealing ring 14 moves to the rightmost end and cannot move, that is, the hot melt adhesive is completely filled. After waiting for a period of time for the hot melt adhesive to cool and solidify, the hot-melt connection and fixation of the roller brush outer cylinder 5 and the roller brush inner cylinder 12 are completed.

[0091] The embodiment of the present invention also provides a method for hot-melt connection of inner and outer cylinders for processing fiber roller brushes of a sweeping robot, which is used for the above-mentioned hot-melt connection device of inner and outer cylinders for processing fiber roller brushes of a sweeping robot, and comprises the following steps:

[0092] S1, sleeve the roller brush inner cylinder 12 into the positioning unit and position it through the erection assembly;

[0093] S2, sleeve the roller brush outer cylinder 5 onto the outside of the roller brush inner cylinder 12, and control the distance between the roller brush outer cylinder 5 and the roller brush inner cylinder 12 by the sealing ring 14 in the sealing push assembly;

[0094] S3, starting the extrusion assembly in the hot melt connection unit to perform secondary positioning on the roller brush outer cylinder 5;

[0095] S4, start the injection assembly to heat the hot melt adhesive and inject it into the space between the roller brush outer cylinder 5 and the roller brush inner cylinder 12 through the multiple injection holes 27 on the sealed injection ring 26, and wait for the hot melt adhesive to cool and solidify to complete the hot melt connection.

[0096] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hot-melt connection device for inner and outer cylinders used for processing a fiber roller brush of a sweeping robot, comprising a processing box (1) and an outer roller brush cylinder (5) and an inner roller brush cylinder (12) for forming a fiber roller brush cylinder of a sweeping robot, characterized in that: Also includes: A carrying plate (9) is arranged in the processing box (1); A positioning unit is arranged on the carrier plate (9), comprising a mounting assembly and a sealing push assembly, wherein a plurality of supporting plates (16) for positioning the roller brush inner cylinder (12) are arranged in the mounting assembly, and a sealing ring (14) is arranged in the sealing push assembly, and support and hot-melt sealing between the roller brush inner cylinder (12) and the roller brush outer cylinder (5) are achieved through the support of the sealing ring (14); The hot melt connection unit is arranged in a processing box (1), and comprises an extrusion component and an injection component, wherein a sealed injection ring (26) is arranged in the extrusion component, and a plurality of injection holes (27) for injecting hot melt adhesive are arranged on the sealed injection ring (26), and the injection component is used to inject a certain amount of hot melt adhesive into between the roller brush inner cylinder (12) and the roller brush outer cylinder (5) through the injection holes (27), and cooperate with the sealing ring (14) to realize the comprehensive sealed injection of the hot melt adhesive.

2. The inner and outer cylinder hot-melt connection device for processing the fiber roller brush of a sweeping robot according to claim 1, characterized in that: The processing box (1) is slidably provided with a lifting and opening and closing door (2) on the outside, and an observation window is provided on the lifting and opening and closing door (2), the lifting and opening and closing door (2) is used to seal the processing box (1) and facilitate the placement and removal of the roller brush inner cylinder (12) and the roller brush outer cylinder (5); A plurality of heat dissipation pipes (3) for heat dissipation and ventilation are arranged outside the processing box (1).

3. The inner and outer cylinder hot-melt connection device for processing the fiber roller brush of a sweeping robot according to claim 1, characterized in that: The mounting assembly comprises a fixed platform (6) fixedly mounted on a bearing plate (9), a supporting plate (10) fixedly mounted on the fixed platform (6), an inner supporting rod (15) fixedly mounted on the supporting plate (10), and a roller brush inner cylinder (12) sleeved on the inner supporting rod (15), and a fixing mechanism mounted on the inner supporting rod (15).

4. The inner and outer cylinder hot-melt connection device for processing fiber roller brush of a sweeping robot according to claim 3, characterized in that: The fixing mechanism comprises a squeeze ring (20) slidably mounted in the inner support rod (15), and hydraulic oil is filled between the inner wall of the inner support rod (15) and the squeeze ring (20), a hydraulic push rod (19) is fixedly mounted in the inner support rod (15), and the squeeze ring (20) is fixedly mounted on the driving end of the hydraulic push rod (19), a plurality of support plates (16) are fixedly mounted on the inner support rod (15) via a plurality of elastic telescopic rods, and a piston push member (17) is fixedly connected between each support plate (16) and the inner support rod (15).

5. The inner and outer cylinder hot-melt connection device for processing fiber roller brush of a sweeping robot according to claim 3, characterized in that: The sealing push assembly comprises a support plate (13) fixedly mounted on a support plate (10), a plurality of compression springs (18) fixedly mounted on the support plate (13), and a sealing ring (14) fixedly mounted on the plurality of compression springs (18), the inner ring of the sealing ring (14) being in contact with the outer wall of the roller brush inner cylinder (12), and the inner wall of the roller brush outer cylinder (5) being sleeved on the outside of the sealing ring (14).

6. The inner and outer cylinder hot-melt connection device for processing fiber roller brush of a sweeping robot according to claim 1, characterized in that: The extrusion assembly comprises a servo motor (8) fixedly mounted on the bottom of the processing box (1), a driving roller (29) fixedly mounted on the driving end of the servo motor (8), a second fixed platform (35) fixedly mounted on the carrier plate (9), a push plate (11) fixedly mounted on the second fixed platform (35) via a telescopic column (36), a push mechanism installed between the push plate (11) and the driving roller (29), and a positioning plate (23) matched with a roller brush outer cylinder (5) fixedly mounted on the push plate (11) via a plurality of extrusion spring rods (24).

7. The inner and outer cylinder hot-melt connection device for processing a fiber roller brush of a sweeping robot according to claim 6, characterized in that: The pushing mechanism comprises a threaded rod (21) fixedly mounted on a driving roller (29), a threaded limiting plate (22) being threadedly mounted on the threaded rod (21), a traction rod (28) being slidably mounted between the threaded limiting plate (22) and a bearing plate (9), and a pushing disc (11) being fixedly mounted on the upper end of the traction rod (28).

8. The hot-melt connection device for inner and outer cylinders used for processing fiber roller brushes of a sweeping robot according to claim 7, characterized in that: The liquid injection assembly comprises a liquid storage box (7) fixedly installed in the processing box (1), and hot melt adhesive is stored in the liquid storage box (7), a liquid pushing plate (30) for squeezing liquid is slidably installed in the liquid storage box (7), and a linkage mechanism is installed between the liquid pushing plate (30) and the traction rod (28), and a heating screen (31) for heating the hot melt adhesive is fixedly installed in the liquid storage box (7); A sealing liquid injection ring (26) is fixedly mounted on the positioning plate (23), and the size of the sealing liquid injection ring (26) is the same as that of the sealing ring (14). An elastic liquid guide tube (25) is fixedly connected between the sealing liquid injection ring (26) and the liquid storage tank (7), and a liquid replenishing tube (4) for replenishing hot melt adhesive is fixedly connected to the liquid storage tank (7).

9. The inner and outer cylinder hot-melt connection device for processing fiber roller brush of a sweeping robot according to claim 8, characterized in that: The linkage mechanism comprises a linkage rod (32) slidably mounted between a liquid storage tank (7) and a liquid pushing plate (30); an electromagnetic engaging column (33) is fixedly mounted on the traction rod (28); an electromagnetic engaging piece (34) is fixedly mounted on the linkage rod (32), and the electromagnetic engaging piece (34) is engaged with the electromagnetic engaging column (33).

10. A method for hot-melting inner and outer cylinders for processing fiber roller brushes of a sweeping robot, used in a hot-melting inner and outer cylinders for processing fiber roller brushes of a sweeping robot as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, sleeve the roller brush inner cylinder (12) into the positioning unit and position it by means of a mounting assembly; S2, sleeve the roller brush outer cylinder (5) onto the outside of the roller brush inner cylinder (12), and control the distance between the roller brush outer cylinder (5) and the roller brush inner cylinder (12) by means of a sealing ring (14) in a sealing push assembly; S3, starting the extrusion assembly in the hot melt connection unit to perform secondary positioning on the roller brush outer cylinder (5); S4, start the injection assembly to heat the hot melt adhesive and inject it into the space between the roller brush outer cylinder (5) and the roller brush inner cylinder (12) through the multiple injection holes (27) on the sealed injection ring (26), and wait for the hot melt adhesive to cool and solidify to complete the hot melt connection.

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