CN114393846B

CN114393846B - Automatic assembly device and method for plastic cover of seat tray

Info

Publication number: CN114393846B
Application number: CN202210010488.0A
Authority: CN
Inventors: 王江林
Original assignee: Henglin Home Furnishings Co Ltd
Current assignee: Henglin Home Furnishings Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2024-04-09
Anticipated expiration: 2042-01-05
Also published as: CN114393846A

Abstract

The invention discloses an automatic assembly device and method for a plastic cover of a seat tray, comprising a second rack, a fifth feeding mechanism, a first driving mechanism, an assembly manipulator and a first assembly mechanism, wherein the first driving mechanism, the assembly manipulator and the first assembly mechanism are arranged on the second rack; the first assembling mechanism is used for placing the tray to be assembled and enabling the threaded rod in the tray to be assembled to be vertical; the assembling manipulator is used for assembling the plastic cover on the tray to be assembled; according to the technical scheme, the plastic cover with the downward opening part of the cover body is sent out through the fifth feeding mechanism, the threaded rod is fixed through the fourth alignment rod, and the plastic cover is assembled on the tray to be assembled through the assembling manipulator, so that automatic assembly of the plastic cover is realized.

Description

Automatic assembly device and method for plastic cover of seat tray

Technical Field

The invention relates to the technical field of mechanical automation, in particular to an automatic assembly device and method for a plastic cover of a seat tray.

Background

For the existing office chairs and leisure chairs, the tilting function and the tilting adjustment of the existing office chairs and leisure chairs are often realized through a chair tray.

The Chinese patent document with publication number of CN201542121U discloses a tray for double-locking chairs, which comprises a chassis arranged on a swivel chair, wherein the chassis is connected with a shell through a support shaft, an adjusting nut is arranged in the shell, the lower end of the adjusting nut is connected with a spring, a movable seat is arranged in the shell, a conical pipe is inserted in the movable seat, a conical fixing plate is arranged between the conical pipe and the movable seat, the side wall of the chassis and the side wall of the shell are connected with an adjusting rod which can rotate and axially move in a penetrating way, the inner end of the adjusting rod is inserted in the movable seat and is connected with an adjusting plate which can contact with a pneumatic rod, the rod body of the adjusting rod is connected with a limiting piece, and one end of the limiting piece is connected with a locking plate which can be buckled at the edge of the side wall of the chassis.

The seat tray in this patent document occupies a wide market share due to its structural superiority.

However, the existing seat tray is basically assembled by manpower, so that the assembly cost of the seat tray is increased, time and labor are wasted, and the efficiency is low.

For those skilled in the art, to complete the automatic assembly of the seat tray, it is necessary to automatically assemble the plastic sleeve on the tray to be assembled, but the following technical problems exist at present:

1) How to automatically send out a single plastic cover in a specific state each time;

2) The plastic cover is assembled on the tray to be assembled, the adjusting nut in the plastic cover is required to be in threaded fit with the threaded rod in the tray to be assembled, but the threaded rod is fixed by means of the adjusting nut in the plastic cover, namely, the state of the threaded rod is uncertain, so that how to accurately assemble the plastic cover on the tray to be assembled is also a technical problem to be solved.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to overcome the above problems, and to provide an automatic assembly device and method for a plastic cover of a seat tray, thereby realizing automatic assembly of the plastic cover of the seat tray.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

an automatic assembly device of a plastic cover of a seat tray, the plastic cover comprises a cover body and an adjusting nut, the cover body comprises a cover body side wall and a cover body top wall, one end of the cover body side wall is connected with the cover body top wall, the other end of the cover body side wall forms a cover body opening part, the cover body top wall is provided with a through hole, the adjusting nut is fixedly arranged in the through hole,

the device comprises a second frame, a fifth feeding mechanism, a first driving mechanism, an assembly manipulator and a first assembly mechanism, wherein the first driving mechanism, the assembly manipulator and the first assembly mechanism are arranged on the second frame;

the first assembling mechanism is used for placing the tray to be assembled and enabling the threaded rod in the tray to be assembled to be vertical;

the assembling manipulator comprises a base, a fourth alignment rod, a lifting driving assembly, a rotating driving assembly and a tenth clamping assembly for clamping the plastic cover, wherein the base is installed on the first driving mechanism, the rotating driving assembly is installed on the base, the tenth clamping assembly is installed on the rotating driving assembly, and the fourth alignment rod is installed on the tenth clamping assembly or the rotating driving assembly in an axially movable mode;

the first driving mechanism drives the base to move and enables the assembling manipulator to have a first stay position and a second stay position, and when the assembling manipulator is located at the first stay position, the lifting driving assembly drives the base to descend so that the tenth clamping assembly can grab the plastic cover;

when the assembly manipulator is positioned at the second stay position, the lifting driving assembly drives the base to descend so that the fourth alignment rod abuts against the threaded rod to fix the threaded rod, and the plastic cover is sleeved on the threaded rod; the rotary driving assembly drives the tenth clamping assembly to rotate, so that the plastic cover is assembled on the tray to be assembled through the threaded fit of the adjusting nut and the threaded rod.

Preferably, the rotary driving assembly comprises a rotary motor, a rotating shaft and a sleeve, the rotary motor is fixedly arranged on the base, one end of the rotating shaft is connected with an output shaft of the rotary motor through a coupler, the sleeve is sleeved at the other end of the rotating shaft and can axially move along the rotating shaft, the sleeve is circumferentially fixed with the rotating shaft, and the tenth clamping assembly is fixedly connected with the sleeve.

Preferably, a resilient buffer is also provided, said resilient buffer being mounted between the fourth alignment rod and the rotary drive assembly or the tenth clamping assembly.

Preferably, the top end of the threaded rod is provided with an alignment hole, and the bottom end of the fourth alignment rod is provided with an alignment part, and the alignment part is matched with the shape of the alignment hole.

Preferably, the first assembling mechanism comprises a fourth mounting frame, a fourth assembling plate used for placing the tray to be assembled and a fourth aligning component arranged on the fourth mounting frame, wherein the upper surface of the fourth assembling plate is obliquely arranged so that a fourth round hole on a movable seat in the tray to be assembled is vertical; the upper surface of the fourth assembly plate is also fixedly provided with or integrally formed with a fourth installation seat for supporting a threaded rod in the assembly tray; the fourth alignment assembly is used to make the threaded rod in the tray to be assembled vertical.

Preferably, the first driving mechanism comprises a fifth driving motor and a fifth mounting frame, the fifth driving motor is mounted on the fifth mounting frame, a fifth sliding rail and a fifth sliding block are arranged on the fifth mounting frame, the fifth sliding block is in sliding fit with the fifth sliding rail, the assembling manipulator is fixedly connected with the fifth sliding block, and the fifth driving motor drives the assembling manipulator to reciprocate along the fifth sliding rail through a transmission belt.

Preferably, the fifth feeding mechanism comprises a sixth vibration disc, a third conveying track and a fourth vibration feeding track, and a seventh feeding track is arranged in the sixth vibration disc; the seventh feeding track spirally ascends along the side wall of the sixth vibration disc, the third conveying track is communicated with the seventh feeding track, and the fourth vibration feeding track is communicated with the third conveying track;

the seventh feeding track is provided with a third falling position for enabling the plastic cover with the opening part of the cover body inwards or outwards to fall off and a fourth falling position for enabling the plastic cover with the opening part of the cover body forwards, backwards or downwards to fall off;

the third conveying track is a torsion track and can gradually convert the plastic cover with the upward opening part of the cover body into the plastic cover with the downward opening part of the cover body in the downward moving process;

the fourth vibration feeding track transfers the plastic cover which is downwards from the opening part of the cover body and comes out of the third conveying track to the other end of the fourth vibration feeding track.

Preferably, the fifth feeding mechanism further comprises a third receiving assembly installed at the discharge port of the fourth vibratory feeding rail, the third receiving assembly comprises a third receiving driving piece and a third receiving piece, the third receiving driving piece drives the third receiving piece to move and has a first stay position and a second stay position, and when the third receiving piece is located at the first stay position, the third receiving piece is communicated with the discharge port of the fourth vibratory feeding rail so that the plastic cover on the fourth vibratory feeding rail can be sent to the third receiving piece; when the third adapting piece is positioned at the second stay position, a space is formed between the plastic cover on the third adapting piece and the plastic cover on the discharge hole of the fourth vibration feeding track so as to facilitate the assembly manipulator to clamp the plastic cover on the third adapting piece.

Preferably, a tenth sensor is further provided, the tenth sensor is located at a discharge hole of the fourth vibration feeding rail or located on the third bearing piece, and the tenth sensor is used for detecting whether a plastic cover is bearing on the third bearing piece.

An automatic assembly method of a seat tray plastic cover adopts the automatic assembly device of the seat tray plastic cover, and comprises the following specific steps:

s1: the first driving mechanism drives the assembly manipulator to move so as to grab the plastic cover with the downward opening part of the cover body at the discharge hole of the fifth feeding mechanism, and then drives the assembly manipulator to move to the position above the tray to be assembled; and in the process, the fourth alignment assembly clamps the threaded rod or the pressure spring sleeved on the threaded rod so that the threaded rod is vertical;

s2, the lifting driving assembly drives the driving base to descend so that the fourth alignment rod abuts against the threaded rod to fix the threaded rod, and the plastic cover is sleeved on the threaded rod;

and S3, the rotary driving assembly drives the tenth clamping assembly to rotate, so that the plastic cover is assembled on the tray to be assembled through the threaded fit of the adjusting nut and the threaded rod.

The beneficial effects of the invention are as follows: according to the invention, the plastic cover with the downward opening part of the cover body is sent out through the fifth feeding mechanism, the threaded rod is fixed through the fourth alignment rod, and the plastic cover is assembled on the tray to be assembled through the assembling manipulator, so that the automatic assembly of the plastic cover is realized.

Drawings

FIG. 1 is a schematic view of an automatic assembly device for a plastic cover of a seat tray according to an embodiment of the present application;

fig. 2 is a schematic diagram ii of an automatic assembly device for a plastic cover of a seat tray according to an embodiment of the present application (omitting a fifth feeding mechanism);

fig. 3 is a schematic view of the fourth alignment assembly according to the embodiment of the present application in a working state in cooperation with a tray to be assembled;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic structural diagram of an assembly robot in an embodiment of the present application;

FIG. 6 is a schematic structural view of a sixth vibration plate according to an embodiment of the present application;

fig. 7 is a schematic structural view of a fourth mounting board according to an embodiment of the present application;

FIG. 8 is a schematic view of a seat tray according to an embodiment of the present disclosure;

FIG. 9 is a schematic view of a plastic cover according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a plastic cover in an embodiment of the present application.

Reference numerals illustrate: 30. a second frame; 320. a fourth assembly plate; 322. a fourth mount;

380. a first driving mechanism; 3801. a fifth driving motor; 3802. a moving plate; 3803. a fifth mounting bracket; 3804. a fifth slide rail; 3805. a fifth slider;

381. assembling a manipulator; 3811. a base; 38121. a lifting motor; 38122. a guide post; 3813. a tenth clamping assembly; 38131. a tenth clamping drive; 38132. a tenth clamping member; 3814. a fourth alignment rod; 38151. a rotating electric machine; 38152. a rotating shaft; 38153. a sleeve; 38154. a rotating head; 38155. a first spring member; 38156. a coupling;

382. a first assembly mechanism; 3820. a fourth mounting bracket; 3821. a fourth alignment assembly; 38211. a fourth alignment drive; 38212. a fourth alignment member;

383. a sixth vibration plate; 3831. a seventh feed rail; 3832. a third drop position; 3833. a fourth drop position; 38321. a second guide bar; 38322. a third guide bar; 38323. a fourth guide bar; 38324. a second step; 38325. a first channel; 38326. a second channel; 38327. a fifth guide bar; 38331. a first guide bar; 38332. an outer bottom wall; 38333. an inner bottom wall; 3834. a sixth guide bar;

384. a third conveying track;

385. a fourth vibratory feed rail;

386. a third socket;

8. a seat tray; 80. a chassis; 800. a first round hole; 801. a first long hole; 802. a second round hole; 81. a movable seat; 810. a third round hole; 811. a fourth round hole; 82. a conical tube; 83. an adjusting rod; 84. a handle member; 85. a pulling piece; 86. a connecting rod; 860. a tapered bore; 87. a torsion spring assembly; 88. an adjusting mechanism; 880. a threaded rod; 8801. aligning the holes; 881. a pressure spring; 882. a plastic sleeve; 883. a plastic cover; 8833. a cover side wall; 8834. a top wall of the cover; 8835. a cover opening; 8831. an adjusting nut; 8832. a through hole; 885. forming a gasket; 886. a flat gasket.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the present application, "assembled" means that the components are detachably mounted on the tray to be assembled, and "assembled" means that the components are fixedly mounted on the tray to be assembled.

Embodiment one:

the seat tray 8 shown in fig. 8 comprises a chassis 80, a movable seat 81, a conical tube 82, an adjusting rod 83, a handle piece 84, a pulling piece 85, a locking mechanism for controlling lifting of the seat and an adjusting mechanism 88 for adjusting tilting tension of the seat, wherein the locking mechanism comprises a torsion spring assembly 87 and a connecting rod 86, the torsion spring assembly 87 comprises a connecting block and a first torsion spring which are fixedly connected, the movable seat 81 is hinged with the chassis 80 through the connecting rod 86, the connecting block is sleeved on the connecting rod 86 in a hollow mode, the torsion spring is fixedly connected with the connecting block and can generate acting force on the conical tube 82, and the adjusting mechanism 88 comprises a threaded rod 880, a pressure spring 881, a plastic sleeve 882, a plastic cover 883, an adjusting nut 8831, a forming gasket 885 and a flat gasket 886 which are coaxially distributed;

here, the mounting structure and the positional structure of the seat tray 8 in the present embodiment are substantially the same as those of the respective components of the seat tray 8 in the related art, and therefore, the mounting relationship and the positional relationship of the respective components in the seat tray 8 are not described in detail here.

As shown in fig. 9 and 10, in the embodiment of the present application, the plastic cover 883 includes a cover body and an adjusting nut 8831, the cover body includes a cover body side wall 8833 and a cover body top wall 8834, one end of the cover body side wall 8833 is connected with the cover body top wall 8834, the other end of the cover body side wall 8833 forms a cover body opening 8835, a through hole 8832 is provided on the cover body top wall 8834, the adjusting nut 8831 is fixedly installed in the through hole 8832, a middle portion of the cover body top wall 8834 is higher than an edge portion of the cover body top wall 8834, and the height of the cover body is smaller than the diameter of the cover body.

It should be noted that, the worker needs to pass one end of the adjusting rod 83 for installing the handle member 84 through the first long hole 801 from inside to outside, and make the adjusting rod 83 be located at the top end of the first long hole 801, then push the adjusting rod 83 to make the adjusting rod 83 axially move, and then make the other end of the adjusting rod 83 pass through the first round hole 800 from inside to outside, and finally place the movable seat 81 at a designated position on the chassis 80, so as to complete the assembly of the tray to be assembled; then, the shaft ends of the connecting rods 86 are riveted, and the threaded rods 880, the plastic sleeves 882 and the spring assemblies are assembled on the seat tray 8, namely, in the embodiment of the application, the tray to be assembled is the seat tray 8 which is assembled by the chassis 80, the movable seat 81, the conical tube 82, the connecting rods 86 and the torsion spring assemblies 87, the threaded rods 880, the plastic sleeves 882 and the spring assemblies, and the plastic covers 883 and the handle pieces 84;

and, assembling the threaded rod 880 on the tray to be assembled means that the threaded rod 880 is positioned within the fourth circular hole 811 on the movable seat 81 and is generally vertical;

and, assembling the plastic sleeve 882 onto the tray to be assembled means that the plastic sleeve 882 is empty onto the threaded rod 880;

and, the spring assembly includes a compression spring 881, a shaped spacer 885 on the compression spring 881, and a flat spacer 886 on the shaped spacer 885. Assembly of the spring assembly on the tray to be assembled means that the compression spring 881 is sleeved on the threaded rod 880, the shaped spacer 885 is sleeved on the threaded rod 880, and the flat spacer 886 is sleeved on the threaded rod 880.

An automatic assembly device for a plastic cover 883 of a seat tray 8 shown in fig. 1 comprises a second frame 30, a fifth feeding mechanism, a first driving mechanism 380, an assembly manipulator 381 and a first assembly mechanism 382, wherein the first driving mechanism 380, the assembly manipulator 381 and the first assembly mechanism 382 are arranged on the second frame 30;

the fifth feeding mechanism is positioned at one side of the second frame 30 and feeds out the plastic cover 883 with the cover opening 8835 facing downwards;

as shown in fig. 3, the first assembling mechanism 382 includes a fourth mounting frame 3820 and a fourth assembling plate 320 for placing a tray to be assembled, and a fourth alignment member 3821 mounted on the fourth mounting frame 3820, and an upper surface of the fourth assembling plate 320 is inclined so that a fourth round hole 811 on the movable seat 81 in the tray to be assembled is vertical; the upper surface of the fourth assembling plate 320 is also fixedly provided with or integrally formed with a fourth mounting seat 322 for supporting the threaded rod 880 of the assembling tray; the fourth alignment assembly 3821 is used to make the threaded rod 880 in the tray to be assembled vertical;

as shown in fig. 5, the assembly robot 381 includes a base 3811, a fourth alignment rod 3814, a lift driving assembly, a rotation driving assembly, and a tenth clamping assembly 3813 for clamping the plastic cover 883, the base 3811 is mounted on the first driving mechanism 380, the rotation driving assembly is mounted on the base 3811, the tenth clamping assembly 3813 is mounted on the rotation driving assembly, and the fourth alignment rod 3814 is axially movably mounted on the tenth clamping assembly 3813 or the rotation driving assembly;

the first driving mechanism 380 drives the base 3811 to move and enable the assembling robot 381 to have a first resting position and a second resting position, when the assembling robot 381 is located at the first resting position, the lifting driving assembly drives the base 3811 to descend so that the tenth clamping assembly 3813 can grip the plastic cover 883, when the assembling robot 381 is located at the second resting position, the lifting driving assembly drives the base 3811 to descend so that the fourth alignment rod 3814 can abut against the threaded rod 880 to fix the threaded rod 880, and the tenth clamping assembly 3813 can sleeve the plastic cover 883 on the threaded rod 880, and the rotation driving assembly drives the tenth clamping assembly 3813 to rotate so that the plastic cover 883 is assembled on the tray to be assembled by the adjustment nut 8831 in threaded engagement with the threaded rod 880.

In this embodiment, the rotary driving assembly includes a rotary motor 38151, a rotary shaft 38152, and a sleeve 38153, where the rotary motor 38151 is fixedly mounted on the base 3811, one end of the rotary shaft 38152 is connected to an output shaft of the rotary motor 38151 through a coupling 38156, the sleeve 38153 is sleeved on the other end of the rotary shaft 38152 and can axially move along the rotary shaft 38152, a circumferential fixation is provided between the sleeve 38153 and the rotary shaft 38152, and the tenth clamping assembly 3813 is fixedly connected to the sleeve 38153; this is because the plastic cover 883 is displaced in the up-down direction during the screw-coupling of the adjustment nut 8831 with the threaded rod 880, and thus the up-down movement of the plastic cover 883 can be compensated by the coupling between the sleeve 38153 and the rotation shaft 38152.

Further preferably, a rotating head 38154 and a first spring member 38155 are further provided and sleeved on the rotating shaft 38152, the rotating head 38154 is fixedly connected with the base 3811, and two ends of the first spring member 38155 are fixedly connected with the rotating head 38154 and the sleeve 38153 respectively.

Further preferably, the rotation shaft 38152 is provided with at least one axially extending chute, and the inner side wall of the sleeve 38153 is provided with at least one limiting member, and the limiting member is slidably matched with the chute.

In the embodiment of the present application, an elastic buffer member is further provided, and the elastic buffer member is installed between the fourth alignment rod 3814 and the rotation shaft 38152, so as to avoid rigid contact between the fourth alignment rod 3814 and the threaded rod 880; at the same time, it is also possible to compensate for the displacement differences during the assembly of the plastic cover 883. Of course, in other embodiments, the resilient bumper can also be mounted between the fourth alignment rod 3814 and the tenth clamping set price;

still more preferably, as shown in fig. 4, an alignment hole 8801 is formed at the top end of the threaded rod 880, and an alignment portion is formed at the bottom end of the fourth alignment rod 3814, and the alignment portion is adapted to the shape of the alignment hole 8801; so set up, at the rotatory in-process of rotatory drive assembly drive plastic cover 883, can further prevent that threaded rod 880 from rocking, and then influence the quality of assembly.

In this embodiment, the lifting driving assembly includes a lifting motor 38121, a first screw rod, a first transmission block and a plurality of guide posts 38122, the base 3811 is installed on the moving plate 3802 in the first driving mechanism 380 in an up-down lifting manner through a plurality of guide posts 38122, the first transmission block is fixedly connected with the base 3811 and is matched with the first screw rod in a transmission manner, and the lifting motor 38121 drives the first screw rod to rotate so as to enable the base 3811 to lift up and down.

In this embodiment, the tenth clamping assembly 3816 includes a tenth clamping driving member 38161 and at least two tenth clamping members 38162 uniformly circumferentially distributed, and the tenth clamping driving member 38161 drives the at least two tenth clamping members 38162 toward and away from each other to clamp or unclamp the plastic cover 883.

In this embodiment of the present application, the first driving mechanism 380 includes a fifth driving motor 3801, a moving plate 3802 and two parallel fifth mounting frames 3803, the fifth driving motor 3801 is mounted on one of the fifth mounting frames 3803, the two fifth mounting frames 3803 are respectively located at two sides of the first assembling mechanism 382, the fifth mounting frames 3803 are provided with a fifth sliding rail 3804 and a fifth sliding block 3805, the fifth sliding block 3805 is in sliding fit with the fifth sliding rail 3804, the moving plate 3802 is fixedly connected with the fifth sliding blocks 3805 on the two fifth mounting frames 3803, the assembling manipulator 381 is mounted on the moving plate 3802, and the fifth driving motor 3801 drives the assembling manipulator 381 to reciprocate along the fifth sliding rail 3804 through a driving belt; this is because the assembling robot 381 has a function of rotating the plastic cover 883 to be assembled on the tray to be assembled in addition to a function of transferring the plastic cover 883, and thus stability of the assembling robot 381 is ensured by providing the two fifth mounting frames 3803.

In the embodiment of the present application, the fifth feeding mechanism includes a sixth vibration disc 383, a third conveying track 384 and a fourth vibration feeding track 385, and a seventh feeding track 3831 is disposed in the sixth vibration disc 383; the seventh feeding rail 3831 spirally rises along the side wall of the sixth vibration disk 383, the third conveying rail 384 is communicated with the seventh feeding rail 3831, and the fourth vibration feeding rail 385 is communicated with the third conveying rail 384;

the seventh feeding track 3831 is provided with a third drop position 3832 for dropping the plastic cover 883 with the cover opening 8835 inward or outward and a fourth drop position 3833 for dropping the plastic cover 883 with the cover opening 8835 forward, backward or downward;

the third conveying rail 384 is a twisted rail, and can gradually change the upward plastic cover 883 of the cover opening 8835 into the downward plastic cover 883 of the cover opening 8835 during the downward movement;

the fourth vibratory feeding rail 385 transfers the plastic cover 883 downward from the cover opening 8835 of the third conveying rail 384 to the other end of the fourth vibratory feeding rail 385.

In this embodiment, the third drop position 3832 is provided with a second guide bar 38321, a third guide bar 38322 and a fourth guide bar 38323, the bottom wall of the third drop position 3832 is gradually inclined downward from inside to outside so as to form a second step 38324 with the bottom wall of the seventh feeding track 3831, one ends of the second guide bar 38321, the third guide bar 38322 and the fourth guide bar 38323 start at the second step 38324, the other ends of the second guide bar 38321, the third guide bar 38322 and the fourth guide bar 38323 are all suspended above the bottom wall of the third drop position 3832, the second guide bar 38321 is located outside the third guide bar 38322 and forms a first channel 38325 in cooperation with the third guide bar 38322, and the fourth guide bar 38323 is located inside the third guide bar 38322 and forms a second channel 38326 in cooperation with the third guide bar 38322;

wherein, after the plastic cover 883 enters the second channel 38326, the plastic cover 883 with the cover opening 8835 facing inwards or outwards falls onto the seventh feeding rail 3831 positioned below or the bottom of the sixth vibration plate 383 after exiting the second channel 38326; the plastic cover 883, with the cover opening 8835 facing forward, rearward, downward or upward, is pulled by the fourth guide bar 38323 to the first passage 38325.

Further preferably, a fifth guiding strip 38327 is further provided, the fifth guiding strip 38327 is located on the bottom wall of the seventh feeding track 3831 and protrudes from the bottom wall of the seventh feeding track 3831, one end of the fifth guiding strip 38327 starts from the outer half of the bottom wall of the seventh feeding track 3831, and the other end of the fifth guiding strip 38327 is connected to the third guiding strip 38322. Thus, when the plastic cover 883 is advanced along the seventh feed rail 3831, it is guided by the fifth guide bar 38327 into the second channel 38326, so that the plastic cover 883 with the cover opening 8835 facing inward or outward falls off the outlet of the second channel 38326.

Further preferably, the fourth guide bar 38323 and the third guide bar 38322 extend gradually upward and outward as compared to the third guide bar 38322 during the forward extension along the seventh feeding rail 3831; specifically, due to the configuration of the plastic cover 883 itself, when the plastic cover 883 passes through the third drop location 3832, the cover opening 8835 is inclined and the cover opening 883 is also in contact with the bottom wall of the third drop location 3832, such that it is just offset from the fourth guide bar 38323 when passing through the second channel 38326, i.e., is not pulled by the fourth guide bar 38323 to the first channel 38325;

while the plastic cover 883 with the cover opening 8835 facing forward, backward, downward or upward passes through the second passage 38326, the cover is positioned over the third and fourth guide strips 38322 and 38323 and can be pulled into the first passage 38325 by the fourth guide strip 38323.

Further preferably, the third guide bar 38322 extends forward a length greater than the fourth guide bar 38323; thus, when the plastic cover 883 with the cover opening 8835 facing inward or outward comes out of the second passage 38326, it is pushed down by the third guide strip 38322 onto the seventh feeding rail 3831 or the bottom of the sixth vibration plate 383.

In this embodiment, a first guiding strip 38331 is disposed on the outer sidewall of the fourth drop position 3833, and the first guiding strip 38331 is suspended above the bottom wall of the fourth drop position 3833; the first guide bar 38331 is used for pulling the plastic cover 883 of the cover opening 8835 forwards, backwards or downwards to the seventh feeding track 3831 positioned below or to the bottom of the sixth vibration disk 383; in this way, the plastic cover 883 having the cover opening 8835 directed forward, backward, or upward is dropped by the height difference, and the plastic cover 883 having the cover opening 8835 directed upward can smoothly pass through the first guide bar 38331.

Further preferably, a second blocking plate 38332 is further provided, one end of the second blocking plate 38332 is mounted on the outer side wall of the fourth falling position, and the other end of the second blocking plate 38332 is fixedly connected with the first guiding strip 38331; in this way, it can be further ensured that the plastic cover 883, which is the cover opening 8835, falls forward, backward, or upward from the fourth falling position 3833.

Further preferably, the bottom wall of the fourth drop position 3833 is gradually inclined downward from inside to outside; further, when the plastic cover 883 is in the fourth drop position 3833, the plastic cover 883 with the cover opening 8835 downward is higher than the plastic cover 883 with the cover opening 8835 upward. The reason for this is that the surface of the top wall 8834 of the cover is a conical surface, so when the plastic cover 883 with the upward cover opening 8835 is located at the fourth drop position 3833, the plastic cover 883 with the downward cover opening 8835 is higher than the plastic cover 883 with the upward cover opening 8835 by matching the cover opening 8835 with the bottom wall of the fourth drop position 3833; thereby facilitating the first guide bar to dial the plastic cover 883 with the cover opening 8835 downward to the bottom of the sixth vibration plate using the height difference.

Further preferably, the bottom wall of the fourth drop position 3833 includes an outer bottom wall 38332 and an inner bottom wall 38333, the outer bottom wall 38332 is located at the outer side of the inner bottom wall 38333, the inner bottom wall 38333 gradually slopes upward from inside to outside to form a notch, the outer bottom wall 38332 gradually slopes downward from inside to outside, and the outer end of the first guide strip 38331 is suspended above the inner bottom wall 38333.

In this embodiment, a sixth guide bar 3834 and a seventh guide bar 3835 are disposed on an outer side wall of the seventh feeding track 3831, the movable ends of the sixth guide bar 3834 and the seventh guide bar 3835 are suspended above a bottom wall of the seventh feeding track 3831, the sixth guide bar 3834 and the seventh guide bar 3835 are used for pulling the plastic cover 883 stacked on the seventh feeding track 3831 to the bottom of the sixth vibration tray 383, wherein the sixth guide bar 3834 and the seventh guide bar 3835 are located below the third drop position and the fourth drop position, the sixth guide bar 3834 is close to the third drop position, and the seventh guide bar 3835 is close to the fourth drop position; this is because when the plastic cover 883 is dropped from the third drop position 3832 or the fourth drop position 3833, it is likely to be overlapped on the seventh feeding rail 3831 of the next layer, and therefore, the overlapped plastic cover 883 is pulled down to the bottom of the sixth vibration plate 383 by the sixth guide bar 3834 and the seventh guide bar 3835.

In the embodiment of the application, a third receiving assembly installed at the discharge port of the fourth vibration feeding rail 385 is further provided, the third receiving assembly comprises a third receiving driving piece and a third receiving piece 386, the third receiving driving piece drives the third receiving piece 386 to move and has a first stop position and a second stop position, when the third receiving piece 386 is located at the first stop position, the third receiving piece 386 is communicated with the discharge port of the fourth vibration feeding rail 385 so that a plastic cover 883 on the fourth vibration feeding rail 385 can be sent to the third receiving piece 386; when the third receiving piece 386 is located at the second stop position, a space is formed between the plastic cover 883 on the third receiving piece 386 and the plastic cover 883 on the discharge port of the fourth vibration feeding rail 385, so that the assembly manipulator 381 can clamp the plastic cover 883 on the third receiving piece 386 conveniently.

Further preferably, a tenth sensor is further provided, the tenth sensor is located at a discharge hole of the fourth vibration feeding rail 385 or is located on the third receiving member 386, and a plastic cover 883 is received on the third receiving member 386 for detecting that the tenth sensor is provided.

In this embodiment, the fourth alignment assembly 3821 includes a fourth alignment driving member 38211 and two fourth alignment members 38212, semi-circular grooves are formed on opposite sides of the two fourth alignment members 38212, and the fourth alignment driving member 38211 drives the two fourth alignment members 38212 to approach each other during rotation so that the two semi-circular grooves form a circular hole adapted to the compression spring 881; so that the compression spring 881 is vertical and ultimately ensures that the threaded rod 880 is vertical.

s1: the first driving mechanism 380 drives the assembling manipulator 381 to move so as to grab the plastic cover 883 with the downward cover opening 8835 at the discharge port of the fifth feeding mechanism, and then drives the assembling manipulator 381 to move to the upper part of the tray to be assembled; and in the process, the fourth alignment assembly 3821 clamps the threaded rod 880 or the compression spring 881 sleeved on the threaded rod 880 such that the threaded rod 880 is vertical;

s2, the lifting driving assembly drives the driving base 3811 to descend so that the fourth alignment rod 3814 abuts against the threaded rod 880 to fix the threaded rod 880, and the plastic cover 883 is sleeved on the threaded rod 880;

and S3, the rotary driving assembly drives the tenth clamping assembly 3813 to rotate so as to be in threaded fit with the threaded rod 880 through the adjusting nut 8831, thereby assembling the plastic cover 883 on the tray to be assembled.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the embodiments by those of ordinary skill in the art without departing from the principles and spirit of the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An automatic assembly device of a seat tray plastic cover, wherein the plastic cover (883) comprises a cover body and an adjusting nut (8831), the cover body comprises a cover body side wall (8833) and a cover body top wall (8834), one end of the cover body side wall (8833) is connected with the cover body top wall (8834), the other end of the cover body side wall (8833) forms a cover body opening part (8835), a through hole (8832) is formed in the cover body top wall (8834), and the adjusting nut (8831) is fixedly arranged in the through hole (8832), and is characterized in that;

the device comprises a second frame (30), a fifth feeding mechanism, a first driving mechanism (380), an assembly manipulator (381) and a first assembly mechanism (382) which are arranged on the second frame (30), wherein the fifth feeding mechanism is positioned on one side of the second frame (30) and is used for feeding out a plastic cover (883) with a cover opening (8835) facing downwards;

the first assembling mechanism (382) is used for placing the tray to be assembled and enabling a threaded rod (880) in the tray to be assembled to be vertical;

the assembly manipulator (381) comprises a base (3811), a fourth alignment rod (3814), a lifting driving assembly, a rotation driving assembly and a tenth clamping assembly (3813) for clamping the plastic cover (883), wherein the base (3811) is installed on the first driving mechanism (380), the rotation driving assembly is installed on the base (3811), the tenth clamping assembly (3813) is installed on the rotation driving assembly, and the fourth alignment rod (3814) is installed on the tenth clamping assembly (3813) or the rotation driving assembly in an axially movable manner;

the first driving mechanism (380) drives the assembling manipulator (381) to move and enables the assembling manipulator (381) to have a first stay position and a second stay position, and when the assembling manipulator (381) is located at the first stay position, the lifting driving assembly drives the base (3811) to descend so that the tenth clamping assembly (3813) can grab the plastic cover (883);

when the assembly manipulator (381) is located at the second stay position, the lifting driving assembly drives the base (3811) to descend so that the fourth alignment rod (3814) abuts against the threaded rod (880) to fix the threaded rod (880), and the plastic cover (883) is sleeved on the threaded rod (880); the rotary drive assembly drives the tenth clamping assembly (3813) to rotate to assemble the plastic cover (883) to the tray to be assembled by threaded engagement of the adjustment nut (8831) with the threaded rod (880).

2. The automatic assembly device of a seat tray plastic cover according to claim 1, wherein the rotary driving assembly comprises a rotary motor (38151), a rotary shaft (38152) and a sleeve (38153), the rotary motor (38151) is fixedly mounted on the base (3811), one end of the rotary shaft (38152) is connected with an output shaft of the rotary motor (38151), the sleeve (38153) is sleeved at the other end of the rotary shaft (38152) and can axially move along the rotary shaft (38152) and can be driven to rotate by the rotary shaft (38152), and the tenth clamping assembly (3813) is fixedly connected with the sleeve (38153).

3. An automatic assembly device for a plastic seat tray cover according to claim 1, characterized in that a resilient buffer is provided, said resilient buffer being mounted between the fourth alignment rod (3814) and the rotary drive assembly or tenth clamping assembly (3813).

4. The automatic assembly device for the plastic cover of the seat tray according to claim 1, wherein the top end of the threaded rod (880) is provided with an alignment hole (8801), and the bottom end of the fourth alignment rod (3814) is provided with an alignment part, and the alignment part is matched with the shape of the alignment hole (8801).

5. An automatic assembly device of a seat tray plastic cover according to claim 1, characterized in that the first assembly mechanism (382) comprises a fourth mounting frame (3820) and a fourth assembly plate (320) for placing a tray to be assembled, and a fourth alignment assembly (3821) mounted on the fourth mounting frame (3820), the upper surface of the fourth assembly plate (320) being inclined so that a fourth round hole (811) on a movable seat (81) in the tray to be assembled is vertical; the upper surface of the fourth assembly plate (320) is also fixedly provided with or integrally formed with a fourth installation seat (322) for supporting a threaded rod (880) in the assembly tray; the fourth alignment assembly (3821) is for making a threaded rod (880) in a tray to be assembled vertical.

6. The automatic assembly device for the plastic cover of the seat tray according to claim 1, wherein the first driving mechanism (380) comprises a fifth driving motor (3801) and a fifth mounting frame (3803), the fifth driving motor (3801) is mounted on the fifth mounting frame (3803), a fifth sliding rail (3804) and a fifth sliding block (3805) are arranged on the fifth mounting frame (3803), the fifth sliding block (3805) is in sliding fit with the fifth sliding rail (3804), the assembly manipulator (381) is fixedly connected with the fifth sliding block (3805), and the fifth driving motor (3801) drives the assembly manipulator (381) to reciprocate along the fifth sliding rail (3804) through a transmission belt.

7. The automatic assembly device for the plastic cover of the seat tray according to claim 1, wherein the fifth feeding mechanism comprises a sixth vibration disc (383), a third conveying track (384) and a fourth vibration feeding track (385), and a seventh feeding track (383) is arranged in the sixth vibration disc (383); the seventh feeding track (3831) spirally ascends along the side wall of the sixth vibration disk (383), the third conveying track (384) is communicated with the seventh feeding track (3831), and the fourth vibration feeding track (385) is communicated with the third conveying track (384);

the seventh feeding track (3831) is provided with a third falling position (3832) for enabling the plastic cover (883) of the cover opening part (8835) to fall inwards or outwards and a fourth falling position (3833) for enabling the plastic cover (883) of the cover opening part (8835) to fall forwards, backwards or downwards;

the third conveying track (384) is a twisted track and can gradually change the upward plastic cover (883) of the cover opening part (8835) into the downward plastic cover (883) of the cover opening part (8835) in the downward moving process;

the fourth vibration feeding rail (385) transfers a plastic cover (883) downward from the cover opening (8835) of the third conveying rail (384) to the other end of the fourth vibration feeding rail (385).

8. The automatic assembly device for seat tray plastic covers according to claim 7, wherein the fifth feeding mechanism further comprises a third receiving assembly mounted at a discharge port of the fourth vibratory feeding rail (385), the third receiving assembly comprising a third receiving drive and a third receiving member (386), the third receiving drive driving the third receiving member (386) to move and having a first resting position and a second resting position, the third receiving member (386) being in communication with the discharge port of the fourth vibratory feeding rail (385) when the third receiving member (386) is in the first resting position such that the plastic covers (883) on the fourth vibratory feeding rail (385) can be fed onto the third receiving member (386); when the third receiving piece (386) is located at the second stay position, a space is formed between the plastic cover (883) on the third receiving piece (386) and the plastic cover (883) on the discharge hole of the fourth vibration feeding track (385) so as to facilitate the assembly manipulator (381) to clamp the plastic cover (883) on the third receiving piece (386).

9. The automatic assembly device for plastic covers of seat trays according to claim 8, further comprising a tenth sensor, wherein the tenth sensor is located at a discharge port of the fourth vibration feeding rail (385) or on the third receiving member (386), and the tenth sensor is used for detecting whether the plastic cover (883) is received on the third receiving member (386).

10. An automatic assembly method of a seat tray plastic cover, characterized in that an automatic assembly device of a seat tray plastic cover according to any one of claims 1-9 is adopted, comprising the following specific steps:

s1: the first driving mechanism (380) drives the assembly manipulator (381) to move so as to grab a plastic cover (883) with a downward cover opening (8835) at a discharge hole of the fifth feeding mechanism, and then drives the assembly manipulator (381) to move to the position above the tray to be assembled; and in the process, the fourth alignment assembly (3821) clamps the threaded rod (880) or a pressure spring (881) sleeved on the threaded rod (880) so that the threaded rod (880) is vertical;

s2, the lifting driving assembly drives the driving base (3811) to descend so that the fourth alignment rod (3814) abuts against the threaded rod (880) to fix the threaded rod (880), and the plastic cover (883) is sleeved on the threaded rod (880);

and S3, the rotary driving assembly drives the tenth clamping assembly (3813) to rotate so as to be in threaded fit with the threaded rod (880) through the adjusting nut (8831) to assemble the plastic cover (883) on the tray to be assembled.