CN112659499A

CN112659499A - Chair armrest injection molding system and chair gasket detection method

Info

Publication number: CN112659499A
Application number: CN202011545636.6A
Authority: CN
Inventors: 王江林; 王郑兴; 陈育昌
Original assignee: Henglin Home Furnishings Co Ltd
Current assignee: Henglin Home Furnishings Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-04-16
Anticipated expiration: 2040-12-23
Also published as: CN112659499B

Abstract

The invention relates to a chair armrest injection molding system and a chair gasket detection method; the chair armrest injection molding system comprises the injection molding mechanism, a vibration feeding mechanism, a manipulator mechanism and a discharge conveying mechanism; the injection molding mechanism, the vibration feeding mechanism, the manipulator mechanism and the discharging and conveying mechanism are positioned on the same side of the three-axis moving rack, and the manipulator assembly can transversely slide through the three-axis moving rack and move back and forth among the injection molding mechanism, the discharging and conveying mechanism and the vibration feeding mechanism; the gasket sucker group of the manipulator mechanism is provided with a proximity switch, the proximity switch comprises a sensing part, and the sensing part of the proximity switch is used for detecting whether a gasket is arranged in the gasket mounting column or not; the yield of the injection molding system is improved.

Description

Chair armrest injection molding system and chair gasket detection method

Technical Field

The invention relates to the technical field of chair armrest manufacturing and processing, in particular to a chair armrest injection molding system and a chair gasket detection method.

Background

The armrest is a crossbar or a handle used for keeping body balance or supporting body, the chair is widely accepted and loved by people as a seat widely used for work and life of people, the chair generally comprises chair legs, a seat cushion, armrests and a backrest, as shown in fig. 1, a chair armrest a produced in the prior art is shown, a main body part of the chair armrest a is provided with a plurality of hole sites a1, the hole sites a1 are used for connecting the seat, the chair back and the like, and a corresponding gasket is required to be placed in each hole site a1 for subsequent bolt fastening to form a complete chair; the common procedure of manufacturing the chair armrest in the factory at present is that a worker selects a required number of gaskets from a stacking area, the gaskets are placed in reserved hole sites of a mold, after the gasket is placed, the mold is closed, an injection molding machine operates, and the chair armrest is injection molded; after the mold is opened, the working personnel take out the chair armrests from the injection molding machine and finally place the chair armrests into a storage box for stacking for heat dissipation and packaging; in the process, workers need to stare at the whole process, and carry, select materials, place gaskets, take materials and stack the materials and the like, so that the work is complicated, and the efficiency is low; in addition, carry in such main equipment and get the material and place work, also there is very big risk to staff's safety, consequently, need to design a set of injection molding assembly line of producing this chair handrail, furthermore, in the in-process of research and development, research and development personnel discover basically through the manipulator snatch the in-process of gasket owing to there is not detection device, basically wherein certain gasket sucking disc is impaired can not successfully absorb the gasket, but the process still continues, then when leading to placing the gasket in the gasket erection column, do not load the gasket on some gasket erection columns that correspond with impaired gasket sucking disc, further lead to not being equipped with the gasket in the chair handrail mounting hole that injection moulding goes out, so this product produces as the waste product, this problem comparatively serious leads to the yield reduction that the chair handrail was moulded plastics.

Disclosure of Invention

The invention aims to provide a chair armrest injection molding system and a chair gasket detection method, which can further detect whether gaskets are loaded on gasket mounting columns after the gaskets are loaded, so as to improve the injection molding yield of the chair armrests.

To achieve the above object, the main technical solution of the present invention is a method for detecting a chair pad, comprising the steps of:

step 1: vibrating and selecting the gasket through a vibrating disc, and vibrating the gasket to a discharging channel; vibrating the gasket positioned on the discharging channel to a discharging end through an electromagnetic vibrator so as to wait for the grabbing of the manipulator assembly;

step 2: starting a telescopic cylinder to drive a disc seat to rotate relative to the output end of a triaxial moving rack, turning over until the side wall surface of the disc seat where a gasket sucker group is located faces downwards, moving the gasket sucker group to the upper part of a discharge channel through the triaxial moving rack, wherein the side wall surface of the disc seat is parallel to the discharge end surface, and the gasket sucker group sucks a gasket placed on the discharge end;

and step 3: based on the position of the gasket sucker groups on the side wall surface of the disk seat, each gasket sucker group is moved to the position right above the discharging end through the movement of the three-axis moving rack, and the gaskets are sequentially sucked; when one gasket is sucked and removed from the discharging end every time, the next gasket is moved to the discharging end of the discharging channel through vibration of the electromagnetic vibrator, and when the gasket completely covers the surface of the discharging end, the electromagnetic vibrator is closed;

and 4, step 4: moving the manipulator assembly to an opening at the top of the injection molding machine through the three-axis moving rack, retracting the telescopic cylinder to enable the disc seat to rotate reversely to an initial position, wherein the disc seat and the output end of the three-axis moving rack are positioned on the same horizontal plane, and the material taking sucker faces the movable mold core and the gasket sucker group faces the fixed mold;

and 5: demoulding a mould in the injection molding machine, separating a movable mould from a fixed mould, extending the manipulator assembly between the movable mould and the fixed mould under the action of the output end of the triaxial moving rack, moving the gasket sucker group towards a fixed mould cavity in the fixed mould, and placing a gasket into a gasket mounting column reserved in the fixed mould cavity; retreating and driving the disc seat to move downwards for a section of displacement continuously, so that the proximity switch loaded on the gasket sucker is right opposite to the gasket on the gasket mounting column, driving the disc seat to move towards the fixed die again, when the displacement reaches a detection range value between a sensing part of the proximity switch and the gasket, sensing whether the gasket on the gasket mounting column is completely loaded or not, after the completion of the confirmation, retreating the disc seat and moving upwards to a position where the material taking sucker is right opposite to the moving model cavity, and if the gasket mounting column is confirmed to be not loaded with the gasket, causing the three-axis moving rack and the injection molding mechanism to pause; meanwhile, the movable mold core moves towards a material taking sucker relative to the movable mold under the driving of a second driving part, the material taking sucker sucks a formed chair handrail positioned in the movable mold cavity, the movable mold core backs to be flush with the surface of the movable mold, and the chair handrail is separated from the mold;

step 6: get the material sucking disc and hold the chair handrail, remove the chair handrail to ejection of compact conveying mechanism through the triaxial and remove the frame on, get material sucking disc stall and absorb for the chair handrail drops to ejection of compact conveying mechanism's conveyer belt on, transports the chair handrail to packing in the storage box through the conveyer belt.

In some examples, when only one first tray is provided, the material taking suction cup and the gasket suction cup set are respectively provided on two opposite side walls of the first tray, and the step 6 further includes:

step 6.1: based on the sliding of the three-axis moving rack, the manipulator assembly and the chair armrests are synchronously moved to the discharging and conveying mechanism, at the moment, a horizontal plane where the chair armrests are located forms a certain obtuse angle with the surface of the conveying belt, and when the material taking sucker stops operating and sucking, the chair armrests fall on the surface of the conveying belt after being overturned by the angle relative to the conveying belt.

In some examples, when only one first tray and one second tray are provided, the first tray is hinged to one end of the second tray, the material-taking suction cup is provided on the second tray, the set of pad suction cups is provided on the first tray, the first tray is provided with a third driving part, and a telescopic end of the third driving part is connected to the second tray, the step 6 further comprises:

step 6.1: based on the sliding of the three-axis moving rack, the manipulator assembly and the chair handrail are synchronously moved to the discharging and conveying mechanism, the third driving part is started, after the second disc seat rotates 90 degrees relative to the first disc seat, the side wall surface of the second disc seat where the material taking sucker is located is parallel to the surface of the conveying belt or forms an acute angle with the surface of the conveying belt, and when the material taking sucker stops operating and sucking, the chair handrail directly falls to the surface of the conveying belt.

An injection molding system for chair armrests, which is used for completing an injection molding method for chair armrests; the chair armrest injection molding system comprises:

the injection molding mechanism is used for processing injection molding chair handrails and comprises a case and a mold arranged in the case, an opening is formed in the top of the case, a first driving part and a second driving part are arranged in the case, the mold comprises a fixed mold and a movable mold, the output end of the first driving part is connected with the movable mold and drives the movable mold to be matched with or demoulded from the fixed mold, a movable mold core is arranged at the center of the movable mold, the output end of the second driving part is connected with the movable mold core, the movable mold core can move relative to the movable mold, a movable mold cavity for manufacturing the chair handrails is formed in the surface of the movable mold core, a fixed mold cavity matched with the movable mold cavity is formed in the surface of the fixed mold, and a gasket mounting column is reserved;

the vibration feeding mechanism is used for vibration discharging of the gasket; the vibration feeding mechanism is positioned adjacent to the injection molding mechanism and comprises a vibration disc and a discharge channel connected with a discharge port of the vibration disc, the gaskets sequentially move in the discharge channel, the displacement of each movement is the outer diameter of one gasket, and electromagnetic vibrators are arranged below at least part of discharge sections of the discharge channel;

the manipulator mechanism is used for taking out the chair armrest formed by injection molding from the driven mold core; the mechanical hand mechanism comprises a three-axis moving rack and a mechanical hand component, the mechanical hand component is hinged to the output end of the three-axis moving rack, a third driving part is arranged at the output end of the three-axis moving rack, the telescopic end of the third driving part is connected to the mechanical hand component and drives the mechanical hand component to rotate around the hinged point of the output end of the three-axis moving rack, and the rotating angle range of the mechanical hand component is 0-90 degrees; the manipulator assembly can extend into the injection molding mechanism from an opening in the top of the case and comprises at least one tray seat, a plurality of material taking suction cups and a plurality of gasket suction cup groups, the material taking suction cups and the gasket suction cup groups are arranged on different tray seats or on side walls of the same tray seat in different directions, the tray seat rotates relative to the output end of the three-axis moving rack, and the orientations of the material taking suction cups and the gasket suction cup groups are changed by rotating the tray seat so as to grasp chair handrails or gaskets;

the proximity switches comprise induction parts, and each pad sucker group is provided with one proximity switch;

the discharge conveying mechanism is used for conveying the injection-molded chair handrail to the storage box and comprises a conveying rail, the conveying rail is obliquely arranged, the head end of the conveying rail is higher than the tail end of the conveying belt, the conveying rail is positioned between the vibration feeding mechanism and the injection molding mechanism, and the tail end of the conveying rail is communicated with a box opening of the storage box;

the injection molding mechanism, the vibration feeding mechanism and the discharge conveying mechanism are located on the same side of the three-axis moving rack, and the manipulator assembly can transversely slide and move back and forth between the injection molding mechanism, the discharge conveying mechanism and the vibration feeding mechanism through the three-axis moving rack.

In some examples, the robot assembly includes a first tray, the material pick-up chuck and the set of pad chucks are disposed on opposite sidewalls of the tray, respectively; the third driving part is an air cylinder, the telescopic end of the third driving part is connected to the disc seat, the air cylinder drives the disc seat to rotate, the disc seat is turned over until the side wall of the disc seat where the gasket sucker group is located faces downwards, the gasket sucker group is located above the discharge channel and is parallel to the discharge channel, and the gasket placed on the discharge channel is sucked through the gasket sucker group; the material taking sucker is turned to a position where the material taking sucker faces the movable mold core and the gasket sucker group faces the fixed mold, the material taking sucker takes the driven mold core out of the chair armrest, and the gasket sucker group puts the gasket into the fixed mold.

In some examples, the manipulator assembly comprises a first disc seat and a second disc seat, an L-shaped fixing seat is arranged at the end of the first disc seat, a vertical side wall of the L-shaped fixing seat is hinged to an output end of the three-axis moving rack, a transverse side wall of the L-shaped fixing seat is hinged to a telescopic end of the third driving part, the other end of the first disc seat is hinged to the second disc seat, a telescopic cylinder is arranged on the first disc seat, the telescopic end of the telescopic cylinder is connected to the second disc seat, the second disc seat can turn over 0-90 degrees relative to the first disc seat, the material taking sucker is arranged on the second disc seat, the gasket sucker group is arranged on the first disc seat, and when the first disc seat and the second disc seat are turned over to be parallel, the material taking sucker and the gasket sucker face opposite directions respectively.

In some examples, the discharge end is provided with an infrared sensor, and the electromagnetic vibrator and the infrared sensor are both in communication connection with the controller; the gaskets move in the discharging channel in sequence, the displacement amount of each movement is the outer diameter of one gasket, and the gaskets are vibrated and displaced to the top surface of the discharging end to be discharged; the gasket covers the discharge end, the electromagnetic vibrator is closed, the gasket does not cover the discharge end, and the electromagnetic vibrator is started.

In some examples, each gasket suction cup set comprises a pair of gasket suction cups, the distance between the two gasket suction cups is greater than the gasket inner aperture and less than the gasket outer diameter, and the gasket suction cups can suck the annular sheet body of the gasket; a plurality of material taking suckers are arranged on the disc seat in the shape of chair armrests, and the manipulator can simultaneously suck a pair of chair armrests from the movable die at one time.

In some examples, a plurality of fans are arranged right above at least one section of the conveying track, the fans can blow to the range of the conveying track to form a heat dissipation area on the conveying track, the chair handrail enters the heat dissipation area through the conveying path of the conveying track, and the wind surface of each fan is parallel to the surface of the conveying track; the conveying track comprises a conveying belt and two driving wheels which drive the conveying belt to rotate in the same direction, at least one driving wheel is connected with a driving motor, a plurality of baffles are arranged on the conveying belt, and adjacent baffles and the conveying belt are enclosed to form a conveying area capable of accommodating a pair of chair handrails.

In some examples, four corner ends of the movable mold are respectively provided with a guide post, four corner ends of the fixed mold are respectively provided with guide grooves opposite to the four guide posts, the first driving part drives the movable mold to close the fixed mold, and the four guide posts are respectively arranged in the four guide grooves.

Due to the adoption of the technical scheme, the invention is different from the scheme applied before, and the implementation effect is as follows:

whether the gasket is loaded in each gasket mounting column is judged by arranging the proximity switch, moving down the driving disc seat of the three-axis moving frame and driving the induction part of the proximity switch to detect whether the gasket exists or not; and as long as one of the gasket mounting columns does not successfully load the gasket, the system is controlled to stop injection molding, so that a worker can conveniently overhaul the problems of the system, and the yield of the injection molding system is improved.

Drawings

Figure 1 is a schematic structural view of an armrest of a conventional chair,

figure 2 is a schematic structural diagram of an embodiment of the present invention,

figure 3 is a schematic top view of the embodiment of figure 2,

figure 4 is a schematic diagram of the structure from another perspective of the embodiment of figure 2,

figure 5 is a schematic diagram of the structure from another perspective of the embodiment of figure 2,

figure 6 is a schematic view of the suction pad pattern of the embodiment of figure 2,

figure 7 is a schematic diagram of the embodiment of figure 2 showing the placement of the pad and the suction of the armrest of the chair,

figure 8 is a schematic structural view of the emptying mode of the embodiment of figure 2,

figure 9 is a schematic structural view of the vibratory feed mechanism of the embodiment of figure 2,

figure 10 is an enlarged schematic view of the region a of the embodiment of figure 9,

FIG. 11 is a schematic structural view of the vibrating feeding mechanism provided with the material poking mechanism in the embodiment of FIG. 2

Figure 12 is a schematic structural view of the outfeed conveyor mechanism of the embodiment of figure 2,

in the figure: the automatic material-picking device comprises a manipulator mechanism 1, a manipulator assembly 11, a second tray 111, a first tray 112, a gasket suction cup 113, a material-picking suction cup 114, a proximity switch 115, a lifting arm 12, a third driving part 121, a base 13, a toothed belt 131, a transverse sliding seat 14, a sliding arm 15, a guide rail 16, a fourth driving part 17, a vibration feeding mechanism 2, a vibration tray 21, a first material selecting 211, an overturning section 212, a second material selecting section 213, a material discharging channel 22, a material ejecting mechanism 23, an electromagnetic vibrator 24, a vibration source 241, a material ejecting cylinder 25, an elastic part 26, a material ejecting block 27, a material ejecting rod 28, a material discharging conveying mechanism 3, a fan 31, a conveying rail 32, an injection molding mechanism 4,

movable molds

41 and 42, a guide column 43, a movable mold core 44, a chair armrest a, a1, a gasket b and an inner ring side wall b 1.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is to be understood that the terms "a" and "an" are to be interpreted as meaning that a number of one element may be one in one embodiment or multiple in another embodiment, and the terms "a" and "an" are not to be interpreted as limiting the number.

The first embodiment is as follows:

referring to fig. 1 to 12 of the drawings of the present specification, an injection molding system for chair armrest according to a preferred embodiment of the present invention includes an injection mechanism 4, a vibration feeding mechanism 2, a manipulator mechanism 1, and a discharge conveying mechanism 3; the injection molding mechanism 4, the vibration feeding mechanism 2 and the discharging and conveying mechanism 3 are positioned on the same side of the three-axis moving rack, the injection molding mechanism 4 is used for processing injection molding chair handrails, and the vibration feeding mechanism 2 is used for vibration discharging of gaskets; manipulator mechanism 1 is arranged in taking out injection moulding's chair handrail from driven mold core 44 and snatchs the gasket and predetermine it to cover half 42 in from vibration feeding mechanism 2, and ejection of compact conveying mechanism 3 is used for carrying injection moulding's chair handrail to storage box, manipulator subassembly 11 can be through triaxial removal frame lateral sliding and round trip movement between injection moulding mechanism 4, ejection of compact conveying mechanism 3 and vibration feeding mechanism 2.

Specifically, as shown in fig. 4, the injection molding mechanism 4 includes a chassis and a mold injection mold disposed in the chassis, and an opening is disposed at the top of the chassis or no baffle is disposed at the top of the chassis; if the opening is set, the aperture of the opening needs to be satisfied that the manipulator assembly 11 extends into the opening, and the aperture of the opening is larger than the distance between the movable mold 41 and the fixed mold 42 during demolding; if no baffle is arranged, the inside and the outside of the case are directly communicated; a first driving part and a second driving part are arranged in the case, the mold comprises a fixed mold 42 and a movable mold 41, the output end of the first driving part is connected with the movable mold 41 and drives the movable mold 41 to mold or demold with the fixed mold 42; the first driving part and the second driving part are both telescopic cylinders, so that redundant description is omitted, and the basic structure of the conventional injection molding machine is similar to realize injection molding processing; it should be mentioned that, in this embodiment, a movable mold core 44 is disposed at the center of the movable mold 41, the movable mold core 44 is a block structure, a moving channel adapted to the movable mold core 44 in shape is disposed at the center of the movable mold 41, the movable mold core 44 is embedded in the moving channel, an output end of the second driving component is connected to the movable mold core 44, the movable mold core 44 is driven to move relative to the movable mold 41, a movable mold cavity for manufacturing a chair armrest is disposed on the surface of the movable mold core 44, a fixed mold cavity adapted to the movable mold cavity is disposed on the surface of the fixed mold 42, and a gasket mounting column is reserved in the fixed mold cavity; in the process of demoulding or mould assembly with the fixed mould 42, the surfaces of the movable mould cores 44 are flush with the surface of the movable mould 41, and the surfaces of the movable mould cores and the fixed mould 42 synchronously move towards the fixed mould 42 for mould assembly or simultaneously move backwards for mould assembly; however, when the manipulator assembly 11 is inserted into a mold to grab the chair armrest formed by injection molding, the second driving component drives the movable mold core 44 to move forward independently of the movable mold 41, and at this time, the surface of the movable mold core 44 protrudes from the surface of the movable mold 41, and after the chair armrest in the movable mold cavity is displaced to contact with the material-taking suction cup 114 in the manipulator assembly 11, the chair armrest is retracted to a state that the surface of the movable mold core 44 is flush with the surface of the movable mold 41, so that the chair armrest is separated from the movable mold cavity, such a design has an advantage that a moving path of the three-axis moving frame driving the manipulator assembly 11 to displace towards the movable mold core 44 is omitted, and the moving path is designed to require precise measurement of the distance between the two paths and a precise track to realize the moving path, so that the realization difficulty is high, multiple times of debugging of the apparatus are time-consuming and labor-consuming, various parts including studs, limiting columns and the like are arranged on the surface of the movable mold 41, once the manipulator assembly 11 extends into the mold and moves to capture successfully, the parts are possibly touched during the lifting process, and the armrest of the chair cannot be taken out of the mold smoothly; by adopting the technical scheme, the chair armrest can be taken out smoothly and efficiently.

In this embodiment, four corner ends of the movable mold 41 are respectively provided with a guide post 43, four corner ends of the fixed mold 42 are respectively provided with guide grooves opposite to the four guide posts 43, the first driving member drives the movable mold 41 to clamp the fixed mold 42, and the four guide posts 43 are respectively placed in the four guide grooves; the guide columns 43 are arranged to guide the movable mould cavity and the fixed mould cavity to be accurately matched, so that the situations of deformation of the injection-molded chair armrest and the like are prevented.

The vibration feeding mechanism 2 is positioned adjacent to the injection molding mechanism 4, the vibration feeding mechanism 2 comprises a vibration disc 21 and a discharge channel 22 connected with a discharge port of the vibration disc 21, the gaskets sequentially move in the discharge channel 22, and the displacement of each movement is the outer diameter of one gasket; in this embodiment, the vibration tray 21 is provided with a material cylinder, a vibration track spirally arranged is arranged on a side wall of the material cylinder, the vibration track includes a first material selection 211 and a second material selection section 213, the vibration track in the first material selection 211 section includes a first bottom plate arranged along the conveying direction, the tail end of the first material selection 211 section is obliquely connected with the head end of the second material selection section 213 through a turning section 212, the second bottom plate is obliquely arranged and gradually twisted to the oblique connection of the material discharge channel 22, and the second material selection section 213 includes a second bottom plate butted with the material discharge channel 22 and support walls integrally arranged at two sides of the second bottom plate; the gasket is horizontally placed on the first bottom plate and spirally rises along the vibration track, and falls to the turning section 212 when moving to the tail end of the first material selecting section 211, the gasket is turned from a horizontal state to a standing state through the turning section 212, and then enters the second material selecting section 213 from the head end of the second material selecting section 213, and because the head end of the second bottom plate is obliquely arranged and gradually twisted to be horizontal, when the gasket just enters the second material selecting section 213, the gasket is supported by the supporting wall on one side of the second bottom plate to move in the second material selecting section 213 and gradually and horizontally placed on the second bottom plate; in the embodiment, as shown in fig. 10, the turning section 212 is a U-shaped channel with an upward opening, the turning section 212 is located below the end of the first option 211, used for receiving the gasket and adjusting the vibration direction of the gasket, the channel opening diameter of the U-shaped channel is slightly smaller than the outer diameter of the gasket, the overturning motion track of the gasket is further elaborated, the gasket is vibrated and displaced in a square state on the first bottom plate, and falls onto the U-shaped channel when vibrating to the tail end of the first bottom plate, because the diameter of the channel opening of the U-shaped channel is slightly smaller than the outer diameter of the gasket, part of the gasket falls into the U-shaped channel and contacts with the inner wall of the U-shaped channel, because of the gravity and inertia of the gasket, the rest part of the gasket is influenced by the counterforce of the contact with the side wall of the U-shaped channel, the pad is turned over around the contact point, and then the pad is turned over from a flat state to a standing state.

It is important to say that at least one section of the discharging channel 22 is a discharging section, an electromagnetic vibrator 24 is arranged at the bottom of the discharging section, the electromagnetic vibrator 24 is used for vibrating displacement of a gasket positioned on the discharging channel 22, the tail end of the discharging channel 22 is a discharging end, the discharging end is provided with an infrared sensor, and the electromagnetic vibrator 24 and the infrared sensor are both in communication connection with a controller; the gaskets move in the discharging channel 22 in sequence, the displacement amount of each movement is the outer diameter of one gasket, and the gaskets are vibrated and displaced to the top surface of the discharging end to be discharged; the gasket covers the discharge end, the electromagnetic vibrator 24 is closed, the gasket does not cover the discharge end, and the electromagnetic vibrator 24 is started; the channel caliber of the discharge channel 22 is equal to the outer diameter of the gasket or not more than the sum of the outer diameters of the two gaskets, so that the two gaskets cannot move side by side on the discharge channel 22 at the same time. Specifically, the electromagnetic vibrator 24 includes a mount, a vibration source 241, and a linkage mechanism; the linkage mechanism comprises an upper mounting plate, a lower mounting plate, a left oblique connecting plate and a right oblique connecting plate, wherein the upper mounting plate, the right oblique connecting plate, the lower mounting plate and the left oblique connecting plate are sequentially connected end to form a parallelogram structure in an enclosing manner, and the parallelogram structure is obliquely arranged towards the discharging channel 22; the lower mounting plate is arranged above the mounting seat, and the conveying guide rail is arranged above the upper mounting plate; the vibration source 241 is installed on a positioning plate, and the left side and the right side of the positioning plate are respectively connected to the left oblique connecting plate and the right oblique connecting plate. Preferably, the positioning plate is arranged at a distance from the lower mounting plate, the vibration source 241 is arranged above the positioning plate, and the vibration source 241 is arranged at a distance from the upper mounting plate; the link gear is still including front side guard plate, rear side guard plate, and the upper and lower both ends of front side guard plate are installed respectively on last mounting panel, lower mounting panel, and the upper and lower both ends of rear side guard plate are installed respectively on last mounting panel, lower mounting panel, locating plate, vibration source 241 all are located between front side guard plate, the rear side guard plate.

Secondly, in order to prevent the gasket from being blocked when the gasket moves from the vibration disc 21 to the discharge channel 22, in this embodiment, a part of the discharge channel 22, which is butted with the discharge port of the vibration disc 21, is a material stirring section, a material stirring mechanism 23 is arranged on the material stirring section, the material stirring mechanism 23 is used for stirring the gasket discharged from the vibration disc 21, and the output end of the material stirring mechanism 23 hooks the inner ring of the gasket and makes the gasket auxiliary gasket move into the discharge channel 22; specifically, the material-pulling mechanism 23 includes a material-pulling cylinder 25, a material-pulling rod 28 and a material-pulling block 27, the material-pulling cylinder 25 is erected on the material-pulling section, the output end of the material-pulling cylinder 25 is connected to the material-pulling block 27, the bottom of the material-pulling block 27 faces the discharge channel 22, the end of the material-pulling rod 28 is hinged to the bottom of the material-pulling block 27, the rod body of the material-pulling rod 28 is connected to the bottom of the material-pulling block 27 through an elastic member 26, the head end of the material-pulling rod 28 is a material-pulling head, the material-pulling head is in a bent hook-shaped structure, the material-pulling head, driven by the material-pulling cylinder 25, abuts against the inner ring wall of the gasket to pull the gasket to move towards the discharge channel 22, as shown in fig. 11, since the front portion of the material-pulling head has a certain bent radian, when the material-pulling head moves towards the gasket, the gasket just contacts the gasket, the gasket lifts, the spring recovers deformation, the material shifting head moves downwards, the material shifting cylinder 25 moves back to hook the gasket, and the material shifting is carried out rapidly by repeating the movement; the reason for arranging the material stirring mechanism 23 is that, since the diameter of the oblique joint between the discharge port of the vibration plate 21 and the discharge channel 22 is generally in the process of being narrowed from wide, once the gasket is stacked, the gasket is easy to block, so that the gasket cannot be effectively moved into the discharge channel 22, and the material stirring mechanism 23 is additionally arranged, so that the blockage is effectively prevented, and the vibration displacement efficiency is improved.

In order to make vibration dish 21 at the in-process of vibration selection material, the noise volume that its produced reduces as far as possible, in this embodiment, the bottom of feed cylinder has been laid and has been inhaled the sound gasket, inhale the sound gasket and make by rubber materials, and inhale the sound gasket and set up a plurality of sound holes of inhaling, it is circumference rule arrangement to inhale the sound hole.

It should be mentioned that, in this embodiment, the manipulator mechanism includes a three-axis moving rack and a manipulator assembly 11, the manipulator assembly 11 is hinged to an output end of the three-axis moving rack, an output end of the three-axis moving rack is provided with a third driving part 121, a telescopic end of the third driving part 121 is connected to the manipulator assembly 11, and drives the manipulator assembly 11 to rotate around a hinge point of the output end of the three-axis moving rack, and a rotation angle range of the manipulator assembly 11 is 0 ° to 90 °; the manipulator assembly 11 can extend into the injection molding mechanism 4 from an opening at the top of the chassis, the manipulator assembly 11 comprises at least one tray seat, a plurality of material taking suction cups 114 and a plurality of gasket suction cups 113, the material taking suction cups 114 and the gasket suction cups 113 are arranged on different tray seats or on side walls of the same tray seat in different directions, the tray seat rotates relative to the output end of the three-axis moving rack, the directions of the material taking suction cups 114 and the gasket suction cups 113 are changed by rotating the tray seat so as to grasp a chair handrail or a gasket, and the third driving part 121 is consistent with the first driving part and the second driving part and is also a telescopic cylinder; the material taking suction cup 114 is a corrugated vacuum suction cup in the prior art, and the principle of the material taking suction cup is not described in detail, that is, the corrugated vacuum suction cup is connected with a vacuum device through a connecting pipe, and then is in contact with the armrest of the chair to be lifted, the vacuum device is started to suck, negative air pressure is generated in the suction cup, and therefore the chair to be lifted is firmly sucked, and the chair to be lifted can be carried. When the object to be lifted is conveyed to a destination, the air is stably inflated into the vacuum chuck, so that the negative air pressure in the vacuum chuck is changed into zero air pressure or slightly positive air pressure, the vacuum chuck is separated from the object to be lifted, and the task of lifting and conveying the object is completed; the principle of the gasket suction cups 113 group is also the same as that of the material taking suction cups 114, the object to be sucked of the gasket suction cups 113 group is a gasket, but the gasket suction cups 113 group in the embodiment further describes that each gasket suction cup 113 group comprises a pair of gasket suction cups 113, the distance between the two gasket suction cups 113 is greater than the inner aperture of the gasket and smaller than the outer diameter of the gasket, and the gasket suction cups 113 can suck the annular sheet body of the gasket; the plurality of material taking suction cups 114 are arranged on the tray seat in the shape of chair armrests, the manipulator can simultaneously suck a pair of chair armrests from the movable mold 41 at one time, the arrangement direction of the gasket suction cups 113 group on the tray seat is set based on the arrangement direction of the gasket mounting columns in the fixed mold cavity, and a flexible sleeve is arranged at the suction head of the gasket suction cup 113 and is made of silica gel, rubber or solid sponge, so that the gasket is protected from being damaged when being sucked; specifically, the three-axis moving frame comprises a base 13, two transverse sliding rails are laid on the top surface of the base 13, the transverse direction of the transverse sliding rails refers to the Y direction as indicated in fig. 3, and the laying direction of the transverse sliding rails is perpendicular to the demolding direction of the mold; a transverse sliding seat 14 is erected on the transverse sliding rail, one side wall of the transverse sliding seat 14 is fixedly connected with a pair of sliding arms 15, the top surfaces of the two sliding arms 15 are respectively paved with a longitudinal sliding rail, the transverse direction of the longitudinal sliding rail refers to the X direction as shown in fig. 3, the arrangement direction of the longitudinal sliding rail is consistent with the demolding direction, the end parts of the two sliding arms 15 are connected through a baffle, and the transverse sliding seat 14, the two sliding arms 15 and the baffle are enclosed to form a circular sliding frame; the two longitudinal slide rail frames are provided with a lifting seat, the lifting seat is connected with a lifting arm 12, the lifting arm 12 is the output end of the three-axis moving frame, and the bottom end of the lifting arm 12 is hinged with the disc seat; the lifting seat is fixedly provided with a movable air cylinder, the sliding arm 15 is provided with a guide rail 16, the telescopic end of the movable air cylinder is fixedly connected to the guide rail 16, the movable air cylinder drives the lifting seat to longitudinally slide, the lifting seat is provided with a lifting air cylinder, and the telescopic end of the lifting air cylinder is connected to the lifting arm 12 so as to drive the lifting arm 12 to move up and down; in this embodiment, when the technical scheme of driving the transverse sliding seat 14 and the manipulator assembly 11 to synchronously and transversely slide is specific, a toothed belt 131 is laid on the top surface of the base 13, the toothed belt 131 is located between two transverse sliding rails, the laying direction of the toothed belt 131 is consistent with the laying direction of the transverse sliding rails, a side wall surface of the toothed belt 131 is a tooth surface, a driving motor is arranged in the transverse sliding seat 14, an output end of the driving motor is connected with a gear, the gear is engaged with the tooth surface, and the driving motor drives the zigzag carriage to move along the laying direction of the toothed belt 131; the synchronous transverse sliding of the manipulator assembly 11 is realized by adopting the structure, so that the displacement of the manipulator assembly 11 to one of the injection molding mechanism 4, the vibration feeding mechanism 2 or the discharging and conveying mechanism 3 is controlled more accurately, and the motion trail is effectively adjusted.

The manipulator assembly 11 has two technical solutions, one of which is that the manipulator assembly 11 includes a first tray 112, and the material-taking suction cups 114 and the gasket suction cups 113 are respectively disposed on opposite sidewalls of the tray; the third driving part 121 is a telescopic cylinder, the telescopic end of the third driving part 121 is connected to the tray seat, the cylinder drives the tray seat to rotate, the tray seat is turned over until the side wall of the tray seat where the gasket suction cups 113 are arranged faces downwards, the gasket suction cups are positioned above the discharge channel 22 and are parallel to the side wall, and the gasket placed on the discharge channel 22 is sucked by the gasket suction cups 113; and turning over until the material taking suction cups 114 face the movable mold core 44 and the gasket suction cups 113 face the fixed mold 42, taking the material taking suction cups 114 out of the chair armrests from the driven mold core 44, and putting the gaskets into the fixed mold 42 by the gasket suction cups 113.

The other hand is that the manipulator assembly 11 includes a first disk seat 112 and a second disk seat 111, an L-shaped fixing seat is disposed at an end of the first disk seat 112, a vertical side wall of the L-shaped fixing seat is hinged to an output end of the three-axis moving frame, a lateral side wall of the L-shaped fixing seat is hinged to a telescopic end of the third driving part 121, the other end of the first disk seat 112 is hinged to the second disk seat 111, the first disk seat 112 is provided with a telescopic cylinder, the telescopic end of the telescopic cylinder is connected to the second disk seat 111, the second disk seat 111 can be turned over by 0-90 degrees relative to the first disk seat 112, the material taking suction cups 114 are disposed on the second disk seat 111, the gasket suction cups 113 are disposed on the first disk seat 112, and when the first disk seat 112 and the second disk seat 111 are turned over to be parallel, the material taking suction cups 114 and the gasket suction cups 113 face opposite directions respectively; this type of scheme is used in this embodiment.

The two technical schemes are mainly different in that the modes of placing the sucked and taken-out formed chair armrests on the conveyor belt are different, the chair armrests need to be turned over by a large angle in the process of falling onto the conveyor belt by adopting the former scheme, the chair armrests stably fall onto the conveyor belt by adopting the latter scheme, and the specific explanation is shown by combining the chair armrest injection molding method in the embodiment.

Different from the scheme of the previous application, in the embodiment, a plurality of proximity switches 115 are further provided, the proximity switches 115 include sensing portions, each pad sucker group is provided with one proximity switch 115, and a detection value range between the sensing portion and the pad placed on the pad mounting post is preset for each proximity switch 115, so that when the tray base moves to the position where the pad sucker 113 faces the pad mounting post to mount the pad on the pad mounting post, the tray base moves backwards and downwards to the position where the proximity switch 115 faces the pad on the pad mounting post, the tray base is driven to move towards the pad mounting post, and when the proximity switch 115 moves to the preset detection value range, the detection value range is 10mm to 25mm, whether the pad on the pad mounting post is completely loaded is sensed, and after the completion of the confirmation, the tray base moves backwards and moves upwards to the position where the material taking sucker faces the moving cavity of the model, if it is confirmed that some gasket mounting columns are not loaded with gaskets, the sensing part feeds back a signal to the controller, and then sends a signal to stop injection molding, so that the three-axis moving rack and the injection molding mechanism are suspended; therefore, the phenomenon that the chair armrest product is unqualified due to the omission of the gasket sucker 113 when the gasket is transported and filled on the fixed die can be prevented.

The discharging conveying mechanism 3 comprises a conveying track 32, wherein the conveying track 32 is implemented by two schemes, one scheme is that the conveying track 32 is arranged obliquely, and the head end of the conveying track 32 is higher than the tail end of the conveyor belt; the other type is that the conveying track 32 is arranged horizontally, no matter the conveying track 32 is arranged obliquely or horizontally, the conveying track 32 comprises two driving wheels rotating in the same direction and driving the conveying belt to rotate, at least one driving wheel is connected with a driving motor, when the injection molded chair handrail falls into the conveying belt, the injection molded chair handrail is conveyed into the storage box through the conveying belt, if the conveying track 32 is arranged obliquely or does not need to adopt the technical scheme, the inclined surface of the conveying track 32 is inclined, the track is inclined at a certain gradient, when the injection molded chair handrail falls into the track surface, the chair handrail can slide down to the storage box along the gradient, the embodiment adopts the inclined surface of the conveying track 32 and adopts the conveying mode that the conveying belt is combined with the driving wheels to realize the transportation of the chair handrail, the conveying track 32 is arranged between the vibration feeding mechanism 2 and the injection molding mechanism 4, the end of the conveying track 32 is communicated with the box opening of the storage box.

In addition, in this embodiment, a plurality of fans 31 are disposed directly above at least one section of the conveying track 32, the range where the fan 31 can blow toward the conveying rail 32 forms a heat radiation area on the conveying rail 32, the chair armrest is transported through the conveying track 32 and passes through the heat dissipation area, the wind surface of the fan 31 is parallel to the surface of the conveying track 32, and the heat dissipation area is arranged to ensure that the temperature of the surface of the chair armrest which is just injection-molded is high, and the chair armrest is easily damaged by the temperature of the chair armrest if the chair armrest is directly touched by hands, and in addition, if the chair armrest cannot be rapidly cooled, in the conveying process, the forming degree of the chair armrest which is just formed by injection molding is not completely fixed, so that, by arranging the fan 31, a heat dissipation area is formed, so that the surface temperature of the chair armrest is reduced in the conveying process, manual grabbing for assembly or picking out defective products is facilitated, and the forming strength can be enhanced; in addition, in this embodiment, be equipped with a plurality of baffles on the conveyer belt, adjacent baffle and conveyer belt enclose to close and are a conveying area who can hold a pair of chair handrail, and the advantage of setting up the baffle lies in independently opening the conveying area of every chair handrail, places every pair of chair handrail and piles up together when the inclined rail face glides or the displacement, and the condition that causes to be difficult to carry takes place.

Based on the injection molding system for chair armrests, the chair gasket detection method comprises the following steps:

step 1: vibrating and selecting the gasket through a vibrating disc 21, and vibrating the gasket to a discharge channel 22; vibrating the gasket on the discharging channel 22 to the discharging end through the electromagnetic vibrator 24 to wait for the grabbing of the manipulator assembly 11;

step 2: starting a telescopic cylinder to drive a disc seat to rotate relative to the output end of the triaxial moving rack, turning over until the side wall surface of the disc seat where the gasket sucker 113 group is located faces downwards, moving the gasket sucker 113 group to the upper part of the discharging channel 22 through the triaxial moving rack, wherein the side wall surface of the disc seat is parallel to the discharging end surface, and sucking the gasket placed on the discharging end by the gasket sucker 113 group;

and step 3: based on the orientation of the gasket suction cups 113 set on the side wall surface of the tray base, each gasket suction cup 113 set is moved to the position right above the discharging end by the movement of the three-axis moving rack, and sequentially sucks the gasket; when one gasket is sucked and removed from the discharging end every time, the next gasket is moved to the discharging end of the discharging channel 22 through the vibration of the electromagnetic vibrator 24, and after the gasket completely covers the surface of the discharging end, the electromagnetic vibrator 24 is closed;

and 4, step 4: moving the manipulator assembly 11 to an opening at the top of the injection molding machine through the three-axis moving rack, retracting the telescopic cylinder, and enabling the tray seat to rotate reversely to an initial position, wherein the tray seat and the output end of the three-axis moving rack are positioned on the same horizontal plane, and the material taking sucker 114 faces the movable mold core 44 and the gasket sucker 113 group faces the fixed mold 42;

and 5: demolding a mold in the injection molding machine, separating a movable mold 41 from a fixed mold 42, enabling the manipulator assembly 11 to extend between the movable mold 41 and the fixed mold 42 under the action of the output end of the three-axis movable rack, enabling the gasket sucker 113 group to move towards a fixed mold cavity in the fixed mold 42, and placing a gasket into a gasket mounting column reserved in the fixed mold cavity; retreating and driving the disc seat to move downwards for a certain displacement continuously, so that the proximity switch 115 loaded on the gasket sucker is right opposite to the gasket on the gasket mounting column, driving the disc seat to move towards the fixed die again, when the disc seat moves to a detection range value between the sensing part of the proximity switch 115 and the gasket, sensing whether the gasket on the gasket mounting column is completely loaded or not, after the completion of the confirmation, retreating the disc seat and moving upwards to a position where the material taking sucker 114 is right opposite to the moving model cavity, and if the gasket is confirmed to be not loaded on the gasket mounting column, causing the three-axis moving rack and the injection molding mechanism to stop operating; meanwhile, the movable mold core 44 moves towards the material taking sucker 114 relative to the movable mold 41 under the driving of the second driving part, the material taking sucker 114 sucks the formed chair armrest in the movable mold cavity, the movable mold core 44 retracts to be flush with the surface of the movable mold 41, and the chair armrest is separated from the mold;

step 6: get material sucking disc 114 and hold the chair handrail, move the chair handrail to ejection of compact conveying mechanism 3 through the triaxial removes the frame on, get material sucking disc 114 stall and absorb for the chair handrail drops to ejection of compact conveying mechanism 3's conveyer belt on, transports the chair handrail to packing in the storage box through the conveyer belt.

The main innovation points of the injection molding method for the chair armrest described in the embodiment are as follows: firstly, the gasket is grabbed and placed into a mold, then the gasket is sucked out from the injection molded chair armrest and placed into the conveying track 32 for conveying and packaging, scattered processes are effectively integrated, an optimized injection molding processing line is formed, and the working efficiency is greatly improved; secondly, the manipulator assembly 11 is switched back and forth between a gasket sucking mode, a gasket placing mode and a chair armrest sucking mode and a chair emptying mode through rotation relative to the lifting arm 12, so that the labor is reduced, the productivity is improved, and the operation is more precise, so that the product is standardized.

Wherein, step 6 is further implemented by two cases, one of them is when only one first tray 112 is provided, the material taking suction cups 114 and the gasket suction cups 113 are respectively provided on two opposite side walls of the first tray 112, and step 6 further includes: step 6.1: based on the sliding of the three-axis moving frame, the manipulator assembly 11 and the chair handrail are synchronously moved to the discharging and conveying mechanism 3, at this time, a horizontal plane where the chair handrail is located forms a certain obtuse angle with the surface of the conveyor belt, and when the material taking sucker 114 stops operating and sucking, the chair handrail falls into the surface of the conveyor belt after being turned over relative to the conveyor belt by the angle.

Another way is that when only one first tray 112 and one second tray 111 are provided, the first tray 112 is hinged to one end of the second tray 111, the material taking suction cup 114 is provided on the second tray 111, the gasket suction cups 113 are provided on the first tray 112, the first tray 112 is provided with a telescopic cylinder, and the telescopic end of the telescopic cylinder is connected to the second tray 111, and the step 6 further includes: step 6.1: based on the sliding of the three-axis moving rack, the manipulator assembly 11 and the chair handrail are synchronously moved to the discharging and conveying mechanism 3, the telescopic cylinder is started, after the second disk seat 111 rotates 90 degrees relative to the first disk seat 112, the side wall surface of the second disk seat 111 where the material taking suction cup 114 is located is parallel to the surface of the conveyor belt or forms an acute angle, and when the material taking suction cup 114 stops operating and sucking, the chair handrail directly falls to the surface of the conveyor belt.

The two schemes are different in the manner that the chair handrail falls on the conveyor belt, specifically, based on the former scheme, because the conveying track 32 of the embodiment is obliquely arranged, and the tray is relatively and vertically lifted, at this time, the side wall surface of the tray and the track of the conveying track 32 form an obtuse angle, and the chair handrail is parallel to the side wall surface of the tray when being sucked by the material taking suction cup 114, so that the chair handrail and the track of the conveying track 32 form an obtuse angle, therefore, when the material taking suction cup 114 stops sucking and operating, the chair handrail needs to turn over the obtuse angle and fall on the conveyor belt of the conveying track 32; if based on the latter solution, after the material-taking suction cups 114 on the second tray seat 111 suck the chair armrest from the cavity of the driven mold and take out the chair armrest, the chair armrest is transferred to the conveying track 32, originally, the first tray seat 112 and the second tray seat 111 are kept in a parallel folding state, and after the second tray seat 111 rotates 90 ° relative to the first tray seat 112 through the movement of the telescopic cylinder, the chair armrest forms an acute angle with the conveying belt of the conveying track 32, or is almost parallel to the conveying belt of the conveying track 32, therefore, when the material-taking suction cups 114 stop sucking operation, the chair armrest does not need to be turned over and falls smoothly onto the conveying belt of the conveying track 32, which is more beneficial to protecting the chair armrest.

Different from the injection molding system for chair armrest described in the first embodiment, the present embodiment further provides a mounting apparatus for mounting a gasket in an injection mold, the mounting apparatus includes an injection molding mechanism 4, a vibration feeding mechanism 2 and a manipulator mechanism 1 shown in the first embodiment, wherein the manipulator mechanism 1 has a technical solution different from that described in the first embodiment, the manipulator mechanism 1 in the present embodiment includes the three-axis moving frame, a first disk seat 112 and a plurality of gasket sucking discs 113, the manipulator mechanism 1 is dedicated for taking out a gasket and mounting the gasket to a gasket mounting column in a cavity of a fixed mold, and another manipulator is dedicated for taking out an injection molded chair armrest, the first disk seat 112 is hinged to an output end of the three-axis moving frame, an output end of the three-axis moving frame is provided with a third driving part 121, a telescopic end of the third driving part 121 is connected to the disk seat, the disk seat is driven to rotate around a hinge point of the output end of the three-axis moving rack, and the rotating angle range of the disk seat is 0-90 degrees; the orientation of the gasket suction cups 113 is changed by rotating the seat, so as to grab the gasket or place the gasket; the injection mechanism 4 and the vibration feeding mechanism 2 are both positioned at the same side of the mechanical arm mechanism 1, the injection mechanism 4 is positioned adjacent to the vibration feeding mechanism 2, and the mechanical arm mechanism 1 moves back and forth transversely between the vibration feeding mechanism 2 and the injection mold; compared with the first embodiment, the mounting device provided by the embodiment is mainly used for sucking the gasket from the discharging end of the vibration feeding mechanism 2 and then placing the gasket into the gasket mounting column reserved in the cavity of the fixed die. The rest of the structures are not described in detail, and reference may be made to the technical solution of the first embodiment.

Based on the installation device, the installation method for installing the gasket in the injection mold comprises the following steps:

step 1: vibrating and selecting the gasket through a vibrating disc 21, and vibrating the gasket to a discharge channel 22; vibrating the gasket on the discharging channel 22 to the discharging end through the electromagnetic vibrator 24 to wait for the grabbing of the manipulator mechanism 1;

step 2: starting a third driving part 121 to drive the disc seat to rotate relative to the output end of the three-axis moving rack, turning over until the side wall surface of the disc seat where the gasket sucker 113 group is located is downward, moving the gasket sucker 113 group to the upper part of the discharging channel 22 through the three-axis moving rack, wherein the side wall surface of the disc seat is parallel to the discharging end surface, and sucking the gasket placed on the discharging end by the gasket sucker 113 group;

and step 3: based on the orientation of the gasket suction cups 113 set on the side wall surface of the tray base, each gasket suction cup 113 set is moved to the position right above the discharging end by the movement of the three-axis moving rack, and sequentially sucks the gasket; when one gasket is sucked and removed from the discharging end every time, the next gasket is moved to the discharging end of the discharging channel 22 through the vibration of the electromagnetic vibrator 24, and after the gasket completely covers the surface of the discharging end, the electromagnetic vibrator 24 is controlled to stop moving;

and 4, step 4: the disc seat is moved above the injection mold through the three-axis moving rack, the telescopic cylinder is retracted, the disc seat rotates reversely to an initial position, at the moment, the disc seat and the output end of the three-axis moving rack are located on the same horizontal plane, and the gasket sucker 113 group faces the fixed die 42;

and 5: demoulding the injection mould, separating the movable mould 41 from the fixed mould 42, enabling the disc seat to extend between the movable mould 41 and the fixed mould 42 under the action of the output end of the triaxial moving rack, enabling the gasket sucker 113 group to move towards a fixed mould cavity in the fixed mould 42, and placing the gasket into a gasket mounting column reserved in the fixed mould cavity;

step 6: after the gasket is successfully placed in the gasket mounting column, the three-axis movable rack drives the disc seat to move backwards and ascend, the injection mold is closed, the movable mold 41 and the fixed mold 42 are combined, and the armrest of the injection molded chair is formed.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention.

The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A chair gasket detection method is characterized by comprising the following steps:

step 1: vibrating and selecting the gasket through a vibrating disc (21), and vibrating the gasket to a discharging channel (22); vibrating the gasket positioned on the discharging channel (22) to a discharging end through an electromagnetic vibrator so as to wait for grabbing of the manipulator assembly (11);

step 2: starting a telescopic cylinder to drive a disc seat to rotate relative to the output end of the triaxial moving rack, turning over until the side wall surface of the disc seat where a gasket sucker group is located faces downwards, moving the gasket sucker group to the upper part of a discharging channel (22) through the triaxial moving rack, wherein the side wall surface of the disc seat is parallel to the discharging end surface, and the gasket sucker group sucks a gasket placed on the discharging end;

and step 3: based on the position of the gasket sucker groups on the side wall surface of the disk seat, each gasket sucker group is moved to the position right above the discharging end through the movement of the three-axis moving rack, and the gaskets are sequentially sucked; when one gasket is sucked and taken away from the discharging end every time, the next gasket is moved to the discharging end of the discharging channel (22) through vibration of the electromagnetic vibrator, and when the gasket completely covers the surface of the discharging end, the electromagnetic vibrator is closed;

and 4, step 4: the manipulator assembly (11) is moved to an opening at the top of the injection molding machine through the three-axis moving rack, the telescopic cylinder is retracted, the tray seat is reversely rotated to an initial position, at the moment, the tray seat and the output end of the three-axis moving rack are positioned on the same horizontal plane, and the material taking sucker (114) faces the movable mold core (44) and the gasket sucker group faces the fixed mold (42);

and 5: demolding a mold in the injection molding machine, separating a movable mold (41) from a fixed mold (42), extending a manipulator assembly (11) between the movable mold (41) and the fixed mold (42) under the action of an output end of a three-axis movable rack, moving a gasket sucker group towards a fixed mold cavity in the fixed mold (42), and placing a gasket into a gasket mounting column reserved in the fixed mold cavity; retreating and driving the disc seat to move downwards for a certain displacement continuously, so that the proximity switch (115) loaded on the gasket sucker is right opposite to the gasket on the gasket mounting column, driving the disc seat to move towards the fixed die again, when the disc seat moves to a detection range value between a sensing part of the proximity switch (115) and the gasket, sensing whether the gasket on the gasket mounting column is completely loaded or not, after the completion of the confirmation, retreating the disc seat and moving upwards to a position where the material taking sucker (114) is right opposite to the moving model cavity, and if the gasket mounting column is confirmed to be not loaded with the gasket, causing the three-axis moving rack and the injection molding mechanism to pause; meanwhile, the movable mold core (44) moves towards a material taking sucker (114) relative to the movable mold (41) under the driving of the second driving part, the material taking sucker (114) sucks a formed chair handrail positioned in the movable mold cavity, the movable mold core (44) backs to be flush with the surface of the movable mold (41), and the chair handrail is separated from the mold;

step 6: get material sucking disc (114) and hold the chair handrail, remove the chair handrail through the triaxial and remove on frame removes ejection of compact conveying mechanism (3), get material sucking disc (114) stall and absorb for the chair handrail drops to the conveyer belt of ejection of compact conveying mechanism (3) on, transports the chair handrail to packing in the storage box through the conveyer belt.

2. The chair pad inspection method according to claim 1, wherein when only one first tray (112) is provided, the material pickup suction cups (114) and the pad suction cups are respectively provided on two opposite sidewalls of the first tray (112), and the step 6 further comprises:

step 6.1: based on the sliding of the three-axis moving rack, the manipulator assembly (11) and the chair handrail are synchronously moved to the discharging and conveying mechanism (3), at the moment, a horizontal plane where the chair handrail is located and the surface of the conveying belt form a certain obtuse angle, and when the material taking sucker (114) stops operating and sucking, the chair handrail turns over the angle relative to the conveying belt and then falls into the surface of the conveying belt.

3. The chair pad detecting method according to claim 1, wherein when only one first tray (112) and one second tray (111) are provided, the first tray (112) is hinged to one end of the second tray (111), the material-taking suction cup (114) is provided on the second tray (111), the set of pad suction cups is provided on the first tray (112), the first tray (112) is provided with a third driving member (121), a telescopic end of the third driving member (121) is connected to the second tray (111), the step 6 further comprises:

step 6.1: based on the sliding of the three-axis moving rack, the manipulator assembly (11) and the chair handrail are synchronously moved to the discharging and conveying mechanism (3), the third driving part (121) is started, after the second disc seat (111) rotates 90 degrees relative to the first disc seat (112), the side wall surface of the second disc seat (111) where the material taking sucker (114) is located is parallel to the surface of the conveying belt or forms an acute angle with the surface of the conveying belt, and when the material taking sucker (114) stops operating and sucking, the chair handrail directly falls to the surface of the conveying belt.

4. An injection molding system for chair armrest, which is used for completing the injection molding method for chair armrest as claimed in any one of claims 1 to 3; the chair armrest injection molding system comprises:

the injection molding mechanism (4) is used for processing and injection molding chair armrests and comprises a case and a mold arranged in the case, the top of the case is provided with an opening, a first driving part and a second driving part are arranged in the case, the die comprises a fixed die (42) and a movable die (41), the output end of the first driving part is connected with the movable die (41) and drives the movable die (41) to be matched with or released from the fixed die (42), a movable mold core (44) is arranged at the center of the movable mold (41), the output end of the second driving part is connected with the movable mold core (44), the movable mold core (44) can move relative to the movable mold (41), a movable mold cavity for manufacturing the armrest of the chair is arranged on the surface of the movable mold core (44), a fixed die cavity matched with the movable die cavity is formed in the surface of the fixed die (42), and a gasket mounting column is reserved in the fixed die cavity;

the vibration feeding mechanism (2) is used for vibrating and discharging the gasket; the vibration feeding mechanism (2) is located adjacent to the injection molding mechanism (4), the vibration feeding mechanism (2) comprises a vibration disc (21) and a discharge channel (22) connected with a discharge hole of the vibration disc (21), the gasket sequentially moves in the discharge channel (22), the displacement of each movement is the outer diameter of one gasket, and an electromagnetic vibrator is arranged below at least part of the discharge section of the discharge channel (22);

the manipulator mechanism (1) is used for taking out the chair armrest formed by injection molding from the driven mold core (44); the gasket is grabbed from the vibration feeding mechanism (2) and is preset into the fixed die (42), the instrument hand mechanism comprises a three-axis moving rack and a manipulator assembly (11), the manipulator assembly (11) is hinged to the output end of the three-axis moving rack, a third driving part (121) is arranged at the output end of the three-axis moving rack, and the telescopic end of the third driving part (121) is connected to the manipulator assembly (11) and drives the manipulator assembly (11) to rotate around the hinge point of the output end of the three-axis moving rack; the manipulator assembly (11) can extend into the injection molding mechanism (4) from an opening in the top of the chassis, the manipulator assembly (11) comprises at least one tray seat, a plurality of material taking suction cups (114) and a plurality of gasket suction cup groups, the material taking suction cups (114) and the gasket suction cup groups are arranged on different tray seats or on side walls of the same tray seat in different directions, the tray seat rotates relative to the output end of the three-axis moving rack, and the orientations of the material taking suction cups (114) and the gasket suction cup groups are changed by rotating the tray seat so as to grasp chair handrails or gaskets;

the discharge conveying mechanism (3) is used for conveying injection-molded chair handrails to the storage box, the discharge conveying mechanism (3) comprises a conveying rail (32), the conveying rail (32) is obliquely arranged, the head end of the conveying rail (32) is higher than the tail end of the conveying belt, the conveying rail (32) is positioned between the vibration feeding mechanism (2) and the injection molding mechanism (4), and the tail end of the conveying rail (32) is communicated with a box opening of the storage box;

the proximity switches (115) comprise sensing parts, each pad sucker group is provided with one proximity switch (115), and the sensing parts of the proximity switches (115) are used for detecting whether a pad is arranged in the pad mounting column or not;

the injection molding mechanism (4), the vibration feeding mechanism (2) and the discharge conveying mechanism (3) are located on the same side of the three-axis moving rack, and the manipulator assembly (11) can transversely slide and move back and forth between the injection molding mechanism (4), the discharge conveying mechanism (3) and the vibration feeding mechanism (2) through the three-axis moving rack.

5. The chair armrest injection molding system of claim 4, wherein said robot assembly (11) comprises a first tray (112), said material pick-up suction cups (114) and said gasket suction cup sets being disposed on opposite sidewalls of said tray, respectively; the third driving part (121) is an air cylinder, the telescopic end of the third driving part (121) is connected to the disc seat, the air cylinder drives the disc seat to rotate, the disc seat is turned over until the side wall of the disc seat where the gasket sucker group is located faces downwards, the gasket sucker group is located above the discharging channel (22) and is parallel to the discharging channel, and the gasket placed on the discharging channel (22) is sucked through the gasket sucker group; the chair is turned over until the material taking sucker (114) faces the movable mold core (44) and the gasket sucker group faces the fixed mold (42), the material taking sucker (114) takes out the driven mold core (44) from the armrest of the chair, and the gasket sucker group puts the gasket into the fixed mold (42).

6. The chair armrest injection molding system according to claim 4, wherein the manipulator assembly (11) comprises a first tray seat (112) and a second tray seat (111), the end of the first tray seat (112) is provided with an L-shaped fixed seat, the vertical side wall of the L-shaped fixed seat is hinged to the output end of the three-axis moving frame, the horizontal side wall of the L-shaped fixed seat is hinged to the telescopic end of the third driving part (121), the other end of the first tray seat (112) is hinged to the second tray seat (111), the first tray seat (112) is provided with a telescopic cylinder, the telescopic end of the telescopic cylinder is connected to the second tray seat (111), the second tray seat (111) can be turned over 0-90 degrees relative to the first tray seat (112), the material taking sucker (114) is arranged on the second tray seat (111), and the gasket sucker group is arranged on the first tray seat (112), when the first tray seat (112) and the second tray seat (111) are turned to be parallel, the material taking sucker (114) and the gasket sucker (113) face opposite directions respectively.

7. The chair armrest injection molding system of claim 4, wherein the discharge end is provided with an infrared sensor, and the electromagnetic vibrator and the infrared sensor are both in communication connection with the controller; the gaskets sequentially move in the discharging channel (22), the displacement amount of each movement is the outer diameter of one gasket, and the gaskets are vibrated and displaced to the top surface of the discharging end to be discharged; the gasket covers the discharge end, the electromagnetic vibrator is closed, the gasket does not cover the discharge end, and the electromagnetic vibrator is started.

8. The chair armrest injection molding system of claim 4, wherein each gasket suction cup set comprises a pair of gasket suction cups (113), a distance between two gasket suction cups (113) is greater than an inner gasket bore diameter and less than an outer gasket diameter, the gasket suction cups (113) are capable of sucking an annular sheet of gasket; a plurality of material taking suction cups (114) are arranged on the cup seat in the shape of chair armrests, and the manipulator can simultaneously suck a pair of chair armrests from the movable mold (41) at one time.

9. The injection molding system of the chair armrest according to claim 4, characterized in that a plurality of fans (31) are arranged right above at least one section of the conveying track (32), the fans (31) can blow to the range of the conveying track (32) to form a heat dissipation area on the conveying track (32), the chair armrest enters the heat dissipation area through the conveying process of the conveying track (32), and the wind surface of the fans (31) is parallel to the surface of the conveying track (32); conveying track (32) include conveyer belt and two syntropy pivoted drive wheels of drive conveyer belt pivoted, at least one drive wheel is connected with a driving motor, be equipped with a plurality of baffles on the conveyer belt, adjacent baffle and conveyer belt enclose to close and be a transport region that can hold a pair of chair handrail.

10. The injection molding system of the chair armrest as claimed in claim 4, wherein each of the four corner ends of the movable mold (41) is provided with a guide post (43), each of the four corner ends of the fixed mold (42) is provided with a guide groove opposite to the four guide posts (43), the first driving member drives the movable mold (41) to close the mold towards the fixed mold (42), and the four guide posts (43) are respectively placed in the four guide grooves.