CN215046661U

CN215046661U - Charging tray transmission system

Info

Publication number: CN215046661U
Application number: CN202120382075.6U
Authority: CN
Inventors: 不公告发明人
Original assignee: Jabil Circuit Shanghai Ltd
Current assignee: Jabil Circuit Shanghai Ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2021-12-07
Anticipated expiration: 2031-02-20

Abstract

The utility model discloses a charging tray transmission system can be applied to in the material equipment of ordering, and it is including carrying material device and transmission device. The visual identification structure is arranged at the top end of the guide rod of the material loading device, and the central hole of the material tray is identified through the visual identification device on the mechanical arm and the top end structure of the guide rod, so that the central hole of the material tray can accurately penetrate through the guide rod. The utility model provides a guide arm fixed knot constructs can with the guide arm firmly the joint on carrying the material device base, at the unloading in-process, only need use visual identification device discernment guide arm top structure once can, improved the efficiency of placing of charging tray greatly. The conveying device comprises a horizontal conveying unit, wherein a claw and a push block which can push and pull the material carrying device are arranged, the purpose of conveying the material carrying device in a split range is achieved, the size of the conveying device is greatly reduced while enough stroke is guaranteed, and space and occupied area are saved. A large and small material tray identification device is further arranged on one side of the conveying device, and the automatic material counting machine can be suitable for material counting machines with large and small material trays in two production modes.

Description

Charging tray transmission system

Technical Field

The utility model belongs to the technical field of the equipment of ordering, especially, relate to a charging tray transmission system.

Background

At present, in the production process of Circuit boards, various electronic components such as capacitors and resistors are generally mounted on a Printed Circuit Board (PCB) by using Surface Mount Technology (SMT). In the process, the use frequency of the electronic components such as the capacitor and the resistor is very high, so that the updating and counting requirements of the SMT production enterprise on the materials such as the electronic components are particularly accurate.

In the prior art, electronic components such as capacitors and resistors are usually placed in a material tray, a large number of parts are stuck on a material belt, and the material belt is wound into the material tray. When going on some material machines and unloading, for improving the conveying efficiency of charging tray can stack a plurality of charging trays together perpendicularly and transmit usually, be CN 212098997U's chinese patent if the grant bulletin number, it discloses a material shallow, through setting up a plurality of material levels of putting on the base, in order to reach the purpose of saving the charging tray of a large amount, and then realize the quick material loading of charging tray through pushing away the car body, but to the some material equipment of multistation, above-mentioned material shallow still need carry through the manual work, thereby turnover between a plurality of stations, not only consuming time hard, and the walking of material shallow degree of accuracy is not high moreover.

In addition, chinese patent that the publication number is CN209142942U also discloses an automatic warehouse entry and exit system for SMT patch device charging trays, which comprises a charging tray conveying trolley, a material tray, a workstation frame, and six-axis robots arranged in the workstation frame, a vision inspection system, an electrical control cabinet and a charging tray grabbing mechanism, when in use, the automatic warehouse entry and exit system for SMT patch device charging trays is matched with the intelligent warehouse system for SMT patch materials, the warehouse entry and exit efficiency and accuracy of SMT materials can be greatly improved, but the system still cannot realize the automatic transmission of the charging tray conveying trolley. And above-mentioned charging tray transmission system does not all possess big or small charging tray recognition function, can not be applicable to the some material machines that have big, two kinds of production modes of small charging tray.

Therefore, there is a need for a tray transport system that can meet the requirements of high automation.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, the object of the present invention is to: the material tray transmission system capable of meeting the high-automation requirement is provided, the labor intensity is reduced, and the production efficiency is improved.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

a tray transport system comprising:

the loading device is used for loading the material tray;

and the conveying device is used for conveying the loading device.

The material loading device comprises:

the guide device comprises a base, wherein a plurality of guide devices are arranged on the base, and the guide devices comprise one or more of guide wheels, guide rails and guide grooves;

the guide rod is fixedly arranged on the base and is of an integrated structure or a sectional type assembly structure;

and the tray is used for bearing the material tray, penetrates through the guide rod and can slide up and down along the guide rod.

The top end of the guide rod is provided with visually identifiable structures including, but not limited to, holes, slots, protrusions, inserts, etc., preferably circular holes, for example, for ease of machining. When a plurality of charging trays need to be arranged on the tray in a stacked mode after penetrating through the guide rod through the mechanical arm, the vision recognition device, preferably a camera recognition device on the mechanical arm can indicate the mechanical arm to accurately place the charging trays by recognizing the center holes of the charging trays and the round holes in the top ends of the guide rods, and the center holes of the charging trays are ensured to penetrate through the guide rod.

The guide rod is fixedly arranged on the base through a guide rod fixing structure, the guide rod fixing structure comprises a first positioning block, a second positioning block and a plurality of screws, and the first positioning block is clamped with the tail end of the guide rod through a U-shaped groove in the first positioning block so as to lock the guide rod in the circumferential direction. The second positioning block is provided with a containing cavity matched with the first positioning block in shape, when the guide rod fixing structure is assembled, the first positioning block is clamped in the containing cavity, and the tail end of the guide rod and the second positioning block are fixedly connected with the base through the plurality of screws respectively so as to further lock the guide rod.

Usually, in order to improve the last unloading efficiency of charging tray, need range upon range of a considerable amount of charging tray on the guide arm of long and thin structure, overweight load causes the guide arm slope easily, not hard up, and through guide arm fixed knot construct, can with the guide arm firmly the joint in on the base, and at the last unloading in-process of charging tray, the guide arm can not take place the slope, not hard up, consequently, at the unloading in-process, only need use visual identification device discernment the round hole once can, has improved the efficiency of placing of charging tray greatly.

A buffer block is connected below the tray through a screw, so that the tray is prevented from being damaged due to accidental falling.

The base is preferably made of light materials, and further preferably made of light metal materials, such as aluminum alloy and the like, so that the mechanical strength of the base is ensured, the weight of the device can be reduced, and the energy consumption of transportation is reduced. In addition, in order to prolong the service life of the base, a plurality of hard material reinforcing pieces are arranged on the stress part of the base, and the hard material is preferably stainless steel.

The base further comprises a plurality of first operation holes/grooves and a plurality of second operation holes/grooves, hooks on the push-pull unit of the material loading device can hook and pull the material loading device through the first operation holes/grooves, and when the material loading device is located at a material loading position, the material tray lifting mechanism at the material loading position can penetrate through the second operation holes/grooves to lift the tray, so that the material trays stacked on the tray are lifted.

In order to ensure that the material loading device keeps stable at the material loading position, a plurality of positioning holes/grooves are further arranged on the base and matched with positioning mechanisms in the material tray lifting mechanism, so that the material loading device is prevented from shaking or overturning in the lifting process and endangering the production safety.

In addition, in order to facilitate manual movement of the material loading device when necessary, the material loading device further comprises a push-pull handle, and the push-pull handle can adopt any structure known in the field, and is not described in detail herein.

The transmission device comprises a horizontal transmission unit, and the horizontal transmission unit comprises a first rack, a first transmission unit, a first induction unit and a material loading device push-pull unit. The first frame can adopt any structure known in the field, and the specific structure and the working principle of the first transmission unit, the first sensing unit and the material loading device push-pull unit are only explained below.

The first transmission unit includes:

the first servo motor is mounted on the first frame, a first belt wheel and a first transmission belt are arranged at the output end of the first servo motor, the first belt wheel is preferably a gear, the first transmission belt is preferably toothed on the inner side, and the toothed first transmission belt can be meshed with a tooth groove on the first belt wheel so as to improve the stability of power transmission;

the material loading device comprises a first guide rail arranged on the first frame, and the material loading device push-pull unit is slidably arranged on the first guide rail.

The material loading device push-pull unit comprises an installation frame, the installation frame is installed on a sliding plate, and the sliding plate is installed on the first guide rail through a sliding block fixed below the sliding plate; follow on the mounting bracket be provided with hook and ejector pad on the extending direction of first guide rail, just the below of hook and ejector pad all is provided with the lift cylinder, lift cylinder fixed mounting in on the mounting bracket.

The material loading device push-pull unit is connected with the first conveyor belt through a fixing device, preferably, the fixing device comprises a first connecting block and a second connecting block which are fixedly connected with each other, the first conveyor belt is clamped in the first connecting block by the first connecting block and the second connecting block, and the second connecting block is fixedly connected to the sliding plate.

When the first servo motor works, the first belt pulley drives the first conveyor belt to work, and the first conveyor belt drives the material loading device push-pull unit to slide back and forth along the first guide rail through a fixing device fixedly connected with the first conveyor belt.

The first sensing unit includes:

the first photoelectric sensor and the second photoelectric sensor are used for detecting the first induction sheet, and preferably, the first photoelectric sensor and the second photoelectric sensor are groove-type photoelectric sensors. The first photoelectric sensor and the second photoelectric sensor are fixed on the first rack, and the first induction sheet is fixed on the sliding plate and can move back and forth along with the sliding plate.

In an initial state, the material loading device push-pull unit is stopped at the middle position of the transmission device, namely the first induction sheet is positioned at a certain position between the first photoelectric sensor and the second photoelectric sensor. When the material loading device carries the material tray to the position right in front of the horizontal transmission unit, the system controls the horizontal transmission unit to start working, the material loading device push-pull unit moves towards the material loading device under the action of the first transmission unit, and when the first photoelectric sensor senses the first sensing piece, the system controls the material loading device push-pull unit to stop moving and the lifting cylinder to act, so that the hook claw is clamped into the first operation hole/groove of the material loading device, and the material loading device is driven to advance along with the material loading device push-pull unit. When the material loading device push-pull unit moves to the position where the second photoelectric sensor senses the first sensing piece, the system controls the material loading device push-pull unit to stop moving, the lifting cylinder moves to enable the hook claw to be separated from the first operation hole/groove of the material loading device, then the material loading device push-pull unit moves to the rear of the material loading device, the system controls the lifting cylinder to move, the push block rises to the position where the push block is located on the same horizontal plane with the base of the material loading device, the push block pushes the material loading device to continue to advance, and the push block acts on the reinforcing piece on the base.

The utility model discloses in through set up in the horizontal transmission unit and can be right the hook, the ejector pad that the material loading device carried out the push-and-pull can realize right the material loading device carries out the journey and carries, is guaranteeing when the material loading device has enough strokes, reduced by a wide margin transmission device's volume saves space and area. It can be understood that the system can control the loading device push-pull unit to push and pull the loading device in two or more steps (at least three steps) according to the stroke requirement, and is not limited herein.

The first rack is also provided with a plurality of bull-eye wheels, and the bull-eye wheels are in sliding fit with the base of the material loading device so as to reduce the friction force of the material loading device when the material loading device push-pull unit pushes and pulls the material loading device.

The first rack is also provided with two limiting devices, and the two limiting devices are respectively positioned at two extreme positions of the movement track of the sliding block, so that the push-pull unit of the loading device is prevented from sliding away from the first guide rail.

The first frame is further provided with a first drag chain, the moving end of the first drag chain is fixed on the sliding plate through a first drag chain connecting piece and can perform reciprocating linear motion along with the material loading device push-pull unit, and the first drag chain is used for protecting equipment wires, air cylinder pipelines and the like from being entangled with each other and damaged in multiple motions.

The first rack is further provided with a proximity switch and a blocking cylinder, the proximity switch is used for detecting whether the material loading device is in place, and the blocking cylinder is controlled by the system to block and release the material loading device through stretching.

The transmission device further comprises a vertical transmission unit which is arranged right in front of the horizontal transmission unit.

The vertical transmission unit comprises two lifting units which are arranged in parallel relatively, each lifting unit comprises a lifting cylinder and a lifting cylinder mounting plate, the output end of each lifting cylinder is fixedly connected with the material loading device bearing mechanism, preferably, the material loading device bearing mechanisms are formed by splicing a plurality of bearing plates for convenience of processing, and in other embodiments, the material loading device bearing mechanisms can also be of an integrated structure.

The lifting cylinder mounting plate is provided with a plurality of guide rods, and the material carrying device bearing mechanism can move up and down along the guide rods under the action of the lifting cylinder.

The material carrying device bearing mechanism is provided with a plurality of bull-eye wheels, and the bull-eye wheels are in sliding fit with a base of the material carrying device so as to reduce the friction force of the material carrying device when the material carrying device push-pull unit hooks the material carrying device.

A non-return block is arranged at an inlet of the material loading device on the material loading device bearing mechanism and is pivotally arranged on the bearing plate; and a pressing plate is further arranged at the outlet of the material loading device on the material loading device bearing mechanism.

In an initial state, the bearing surface of the bearing mechanism of the material loading device and the material loading device are positioned on the same horizontal plane, the blocking module at the upper end of the non-return block is also positioned in a horizontal position, the material loading device is pushed into the vertical transmission unit, and after the material loading device completely enters the vertical transmission unit, the pressing plate has a limiting effect on the base of the material loading device, so that the material loading device is prevented from overturning and causing production accidents in the lifting process. The lifting cylinder drives the material loading device bearing mechanism to move upwards until the material loading device bearing mechanism and the horizontal transmission unit are positioned on the same horizontal plane, and the system controls the horizontal transmission unit to start working, wherein the working process is as described above. In addition, in the ascending process of the loading device bearing mechanism, the non-return block overturns under the action of gravity, so that the loading device is prevented from sliding out.

The lifting unit may be fixed to the plant floor or the equipment rack using any mounting means known in the art and will not be described herein.

The tray transmission system also comprises a large tray identification device and a small tray identification device which are arranged on one side of the transmission device and used for identifying the size of the tray so as to transmit an identification result to the control system, and the control system executes a corresponding instruction according to the identification result.

The large and small tray identification device comprises a second rack, a second transmission unit and a second sensing unit. The second frame may take any structure known in the art, and only the specific structure and operation principle of the second transmission unit and the second sensing unit will be described below.

The second transmission unit includes:

the output end of the second servo motor is provided with a second belt wheel and a second conveyor belt, the second belt wheel is preferably a gear, the second conveyor belt is preferably toothed on the inner side, and the toothed second conveyor belt can be meshed with a tooth groove on the second belt wheel so as to improve the stability of power transmission;

a second guide rail installed on the second frame, on which a moving plate is slidably installed, preferably, the moving plate is installed on the second guide rail by a slide block fixed therebelow;

the moving plate is connected with the second conveyor belt through a fixing device, preferably, the fixing device comprises a third connecting block and a fourth connecting block which are fixedly connected with each other, the third connecting block and the fourth connecting block clamp the second conveyor belt therein, and the third connecting block is fixedly connected on the moving plate.

When the second servo motor works, the second belt wheel drives the second conveyor belt to work, the second conveyor belt drives the moving plate to slide back and forth along the second guide rail through a fixing device fixedly connected with the second conveyor belt, and the second rack is further provided with two limiting blocks which are respectively located at two limit positions of the motion track of the sliding block.

The second sensing unit includes: the third photoelectric sensor and the fourth photoelectric sensor are used for detecting the second induction sheet, and preferably, the third photoelectric sensor and the fourth photoelectric sensor are groove-type photoelectric sensors.

Preferably, the third photoelectric sensor and the fourth photoelectric sensor are fixed on the second frame, and the second sensing piece is fixed on the moving plate and can move back and forth along with the moving plate. It can be understood that, because the third photoelectric sensor, the fourth photoelectric sensor and the second sensing piece are in relative motion, in other embodiments, the second sensing piece can be fixed on the second frame, and the third photoelectric sensor and the fourth photoelectric sensor are fixed on the motion plate and can move along with the motion plate back and forth, so that the purpose of the present invention can be achieved.

The movable plate is characterized in that the movable plate is further provided with an induction plate, a plurality of guide columns are fixed on the induction plate, the other ends of the guide columns movably penetrate through an induction plate mounting plate, a reset spring is sleeved on part or all of the guide columns, the induction plate mounting plate is fixed on the movable plate, a plurality of proximity switches are further arranged on the induction plate, and one ends of the proximity switches are opposite to the induction plate.

In an initial state, the second sensing piece is located in the sensing groove of the third photoelectric sensor, and a first distance is provided between one end of the proximity switch close to the sensing plate and the sensing plate, preferably, the first distance is set to be 15 mm. When the material loading device carries the material tray to the position right ahead of the large and small material tray identification devices, the system controls the large and small material tray identification devices to start working, and the induction plate moves towards the material tray in the material loading device under the action of the second transmission unit. If the induction plate is blocked after contacting the material tray, the reset spring is compressed, and after the distance between the induction plate and the proximity switch is reduced to a second distance, the proximity switch is triggered, the system controls the second transmission unit to stop and reset, and simultaneously judges that the material tray is a large material tray, and preferably, the second distance is set to be 10 mm; if the induction plate is not blocked in the advancing process, the fourth photoelectric sensor induces the second induction sheet, and the charging tray is judged to be a small charging tray.

The utility model discloses in, big charging tray is not less than 8 cun charging trays, like 8 cun, 11 cun, 13 cun or 15 cun etc, little charging tray is for being less than 8 cun charging trays, like 7 cun etc, can understand that, and technical personnel in the field can define according to the production actual need big charging tray to synthesize and set up first distance, second distance under distance and the initial condition between third photoelectric sensor and the fourth photoelectric sensor the tablet extremely the distance of charging tray.

In order to protect the proximity switch from being collided by the induction plate in an accidental state, a plurality of limiting bolts are further arranged on the induction plate mounting plate.

The second frame is also provided with a second drag chain, the moving end of the second drag chain is fixed on the moving plate through a second drag chain connecting piece and can move along with the moving plate in a reciprocating linear motion, and the second drag chain is used for protecting equipment wires and the like from being entangled with each other and damaged in multiple movements.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an among the material loading device, the top of its guide arm is provided with visual recognizable structure, passes a plurality of charging trays through the arm as required the guide arm, range upon range of place in when on the tray, visual recognizable device on the arm can be through discerning the centre bore of charging tray and guide arm top structure instructs the arm is accurate to be placed the charging tray ensures the centre bore of charging tray passes the guide arm. And through guide arm fixed knot construct, can with the guide arm firmly the joint in on the base, at the last unloading in-process of charging tray, the guide arm can not take place to incline, not hard up, consequently, at the unloading in-process, only need use visual identification device discerns guide arm top structure once can, improved the efficiency of placing of charging tray greatly.

2. The utility model discloses a transmission device includes the horizontal transmission unit, through set up in the horizontal transmission unit can be right the hook, the ejector pad that the material carrying device carried out the push-and-pull can realize right the material carrying device carries out the journey and carries, is guaranteeing when the material carrying device has enough strokes, reduced by a wide margin transmission device's volume is saved space and area.

3. The utility model discloses still set up the cooperation among the preferred embodiment the vertical transmission unit of horizontal transmission unit has further improved the degree of automation that the material loading device carried.

4. The utility model discloses one side of transmission device still is provided with big or small charging tray recognition device, is used for discerning the size of charging tray, and then transmit the recognition result to control system, control system basis corresponding instruction is carried out to the recognition result, can be applicable to the some material machine that has two kinds of production modes of big, little charging tray.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an exploded view of a tray transport system in an embodiment;

FIG. 2 is a schematic structural diagram of a loading device in the embodiment;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is an exploded view of a first perspective structure of the loading device in the embodiment;

FIG. 5 is an exploded view of a second perspective of the loading device in the embodiment;

FIG. 6 is a partial structural sectional view of a loading device in the embodiment;

FIG. 7 is a schematic structural view of a base in the embodiment;

FIG. 8 is a schematic diagram illustrating a first perspective structure of a horizontal transfer unit according to an embodiment;

FIG. 9 is a diagram illustrating a second perspective structure of the horizontal transfer unit according to the embodiment;

FIG. 10 is a first perspective view of the push-pull unit of the loading device in an embodiment;

FIG. 11 is a second perspective view of the push-pull unit of the loading device in an embodiment;

FIG. 12 is a schematic structural view of a vertical transfer unit in an embodiment;

FIG. 13 is a schematic structural diagram of a loading mechanism of the loading device in the embodiment;

FIG. 14 is a schematic diagram showing a first perspective structure of the large and small tray recognition device in the embodiment;

FIG. 15 is a schematic diagram showing a second perspective structure of the large and small tray recognition device in the embodiment;

fig. 16 is a third view structure diagram of the large and small tray identification device in the embodiment.

Reference numerals: 1-material loading device, 101-base, 1011-reinforcing part, 1012-first operation hole/groove, 1013-second operation hole/groove, 1014-positioning hole, 102-guide rod, 1021-round hole, 1023-first positioning block, 1024-second positioning block, 1025-containing cavity, 103-tray, 1031-buffer block, 104-push-pull handle, 105-guide wheel, 2-horizontal transmission unit, 201-first frame, 2021-first servo motor, 2022-first belt wheel, 2023-first transmission belt, 203-material loading device push-pull unit, 2031-hook claw, 2032, 2034-lifting cylinder, 2033-push block, 2035-slide block, 2036-slide plate, 2037-first connection block, 2038-second connection block, 204-first guide rail, 2041-limiting device, 205, 308-bull's eye wheel, 206-first drag chain, 2061-first drag chain connecting piece, 2071-first photoelectric sensor, 2072-second photoelectric sensor, 2073-first sensing piece, 208-proximity switch, 209-blocking cylinder, 3-vertical transmission unit, 301-lifting cylinder, 302-lifting cylinder mounting plate, 303, 305, 306-bearing plate, 304-guide rod, 307-non-return block, 309-pressing plate, 4-large and small material tray identification device, 401-second frame, 4021-second servo motor, 4022-second belt wheel, 4023-second conveyor belt, 4024-second guide rail, 4025-sliding block, 4026-moving plate, 4027-third connecting block, 8-fourth connecting block, 4029-a limiting block, 403-a second drag chain, 4031-a second drag chain connecting piece, 4041-a third photoelectric sensor, 4042-a fourth photoelectric sensor, 4043-a second induction sheet, 4051-a proximity switch, 4052-an induction plate mounting plate, 4053-an induction plate, 4054-a guide pillar and 4055-a limiting bolt mounting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, a tray conveying system includes:

a loading device 1 for loading a tray (not shown in the figure);

and the conveying device is used for conveying the loading device 1.

As shown in fig. 2, the loading device 1 includes:

the device comprises a base 101, wherein a plurality of guide wheels 105 are arranged on the base 101;

the guide rod 102 is fixedly installed on the base 101, in the embodiment, the guide rod 102 is an integral structure, and in other embodiments, the guide rod may also be a sectional assembly structure;

the tray 103 is used for bearing the material tray, and the tray 103 penetrates through the guide rod 102 and can slide up and down along the guide rod 102.

Fig. 3 is an enlarged view of a point a in fig. 2, and as shown in the figure, a circular hole 1021 is formed at the top end of the guide rod 102. When a plurality of trays need to be stacked on the tray 103 after passing through the guide rods 102 by the mechanical arm, a visual recognition device (not shown), preferably a camera recognition device, on the mechanical arm indicates the mechanical arm to accurately place the trays by recognizing the center holes of the trays and the circular holes 1021 on the top ends of the guide rods 102, so as to ensure that the center holes of the trays pass through the guide rods 102.

The guide rod 102 is fixedly mounted on the base 101 through a guide rod fixing structure, as shown in fig. 4 to 6, the guide rod fixing structure includes a first positioning block 1023, a second positioning block 1024 and a plurality of screws (not shown in the figure), and the first positioning block 1023 is engaged with the end of the guide rod 102 through a U-shaped groove thereon, so as to lock the guide rod 102 in the circumferential direction. The second positioning block 1024 is provided with a containing cavity 1025 which is matched with the first positioning block 1023 in shape, after the guide rod fixing structure is assembled, the first positioning block 1023 is clamped in the containing cavity 1025, and the tail end of the guide rod 102 and the second positioning block 1024 are respectively fixedly connected with the base 101 through the screws so as to further lock the guide rod 102.

Generally, in order to improve the last unloading efficiency of charging tray, need range upon range of a considerable amount of charging tray on the guide arm of long and thin structure, overweight load causes the guide arm slope easily, not hard up, and through guide arm fixed knot construct, can with guide arm 102 joint firmly in on the base 101, and at the last unloading in-process of charging tray, guide arm 102 can not take place the slope, not hard up, consequently, at the unloading in-process, only need use visual identification device discernment round hole 1021 once can, has improved the efficiency of placing of charging tray greatly.

A buffer block 1031 is connected to the lower portion of the tray 103 through screws, so that the tray 103 is prevented from being damaged due to accidental falling.

The base 101 is made of aluminum alloy, so that the mechanical strength of the base is guaranteed, the weight of the device can be reduced, and the transmission energy consumption is saved. In addition, in order to prolong the service life of the base 101, a plurality of stainless steel reinforcing pieces 1011 are arranged on the stressed parts.

As shown in fig. 7, the base 101 further includes a plurality of first working holes/grooves 1012 and second working holes/grooves 1013, the hooks 2031 of the loader pushing and pulling unit 203 can hook the loader 1 through the first working holes/grooves 1012, and when the loader 1 is at the loading position, a tray lifting mechanism (not shown) at the loading position can lift the tray 103 through the second working holes/grooves 1013, so as to lift the tray stacked on the tray 103.

In order to keep the loading device 1 stable at the loading position, a plurality of positioning holes 1014 are further arranged on the base 101, and the positioning holes 1014 are matched with a positioning mechanism (not shown in the figure) in the tray lifting mechanism, so that the situation that the loading device 1 shakes or topples in the lifting process and the production safety is endangered is avoided.

In addition, in order to facilitate manual movement of the loading device 1 when necessary, the loading device further includes a push-pull handle 104, and the push-pull handle 104 may adopt any structure known in the art and is not described herein again.

The transmission device comprises a horizontal transmission unit 2, and as shown in fig. 8, the horizontal transmission unit 2 comprises a first frame 201, a first transmission unit, a first sensing unit and a material loading device push-pull unit 203. The first frame 201 may adopt any structure known in the art, and the specific structure and operation principle of the first transmission unit, the first sensing unit and the loader push-pull unit 203 will be described below.

As shown in fig. 9 to 11, the first transmission unit includes:

a first servo motor 2021 installed on the first frame 201, wherein an output end of the first servo motor 2021 is provided with a first pulley 2022 and a first conveyor belt 2023, the first pulley 2022 is a gear, the inner side of the first conveyor belt 2023 has teeth, and the first conveyor belt 2023 having teeth can be engaged with a tooth groove on the first pulley 2022 to improve the stability of power transmission;

a first guide rail 204 mounted on the first frame 201, and the loader push-pull unit 203 is slidably mounted on the first guide rail 204.

The loading device push-pull unit 203 comprises a mounting frame, the mounting frame is mounted on a sliding plate 2036, and the sliding plate 2036 is mounted on the first guide rail 204 through a sliding block 2035 fixed below the sliding plate 2036; a hook 2031 and a push block 2033 are arranged on the mounting bracket along the extending direction of the first guide rail 204, lifting

cylinders

2032 and 2034 are arranged below the hook 2031 and the push block 2033, and the

lifting cylinders

2032 and 2034 are fixedly mounted on the mounting bracket.

The material loading device push-pull unit 203 is connected to the first conveyor belt 2023 through a

fixing device

2037, 2038, the

fixing device

2037, 2038 includes a first connecting block 2037 and a second connecting block 2038 fixedly connected to each other, the first connecting block 2037 and the second connecting block 2038 clamp the first conveyor belt 2023 therein, and the second connecting block 2038 is fixedly connected to the sliding plate 2036.

When the first servo motor 2021 works, the first belt pulley 2022 drives the first conveyor belt 2023 to work, and the first conveyor belt 2023 drives the loading device push-pull unit 203 to slide back and forth along the first guide rail 204 through the fixing

devices

2037 and 2038 fixedly connected to the first conveyor belt 2023.

As shown in fig. 10, the first sensing unit includes:

a first photosensor 2071, a second photosensor 2072 and a first sensing piece 2073, wherein the first photosensor 2071 and the second photosensor 2072 are used for detecting the first sensing piece 2073, and the first photosensor 2071 and the second photosensor 2072 are groove type photosensors. The first and

second photosensors

2071 and 2072 are fixed to the first frame 201, and the first sensing piece 2073 is fixed to the sliding plate 2036 and can move back and forth along with the sliding plate 2036.

In the initial state, the loader push-pull unit 203 is stopped at the middle position of the conveyor, that is, the first sensing piece 2073 is located at a position between the first and

second photosensors

2071 and 2072. When the material loading device 1 carries the material tray to the front of the horizontal transmission unit 2, the system controls the horizontal transmission unit 2 to start working, the material loading device push-pull unit 203 moves towards the material loading device 1 under the action of the first transmission unit, and when the first photoelectric sensor 2071 senses the first sensing piece 2073, the system controls the material loading device push-pull unit 203 to stop moving and the lifting cylinder 2032 to act, so that the hook 2031 is clamped into the first working hole/groove 1012 of the material loading device 1, and the material loading device 1 is driven to advance along with the material loading device push-pull unit 203. When the loading device push-pull unit 203 moves to the position where the second photoelectric sensor 2072 senses the first sensing piece 2073, the system controls the loading device push-pull unit 203 to stop moving, and the lifting cylinder 2032 moves to separate the hook 2031 from the first working hole/groove 1012 of the loading device 1, and then the loading device push-pull unit 203 moves to the rear of the loading device 1, and the system controls the lifting cylinder 2034 to move to lift the push block 2033 to the same level as the base 101 of the loading device 1, and push the loading device 1 to move forward continuously through the push block 2033, and the push block 2033 acts on the reinforcing piece 1011 on the base 101.

In this embodiment, the loader push-pull unit 203 pushes and pulls the loader 1 in two steps, but in other embodiments, the system can also control the loader push-pull unit 203 to push and pull the loader 1 in multiple steps (at least three steps) according to the travel requirement.

The utility model discloses in through set up in the horizontal transmission unit 2 and can be right the hook 2031, the ejector pad 2033 that the material loading device 1 carries out the push-and-pull can realize right the material loading device 1 carries out the journey and carries, is guaranteeing when the material loading device 1 has enough strokes, reduced by a wide margin transmission device's volume is saved space and area.

The first frame 201 is further provided with a plurality of bull-eye wheels 205, and the bull-eye wheels 205 are in sliding fit with the base 101 of the material loading device 1 so as to reduce the friction force of the material loading device push-pull unit 203 for pushing and pulling the material loading device 1.

The first frame 201 is further provided with two limiting devices 2041, and the two limiting devices 2041 are respectively located at two limit positions of the movement track of the sliding block 2035, so as to prevent the material loading device push-pull unit 203 from sliding off the first guide rail 204.

The first frame 201 is further provided with a first drag chain 206, a moving end of the first drag chain 206 is fixed on the sliding plate 2036 through a first drag chain connecting piece 2061 and can perform reciprocating linear motion along with the material loading device push-pull unit 203, and the first drag chain 206 is used for protecting equipment wires, cylinder pipes and the like from being entangled with each other and damaged in multiple motions.

The first frame 201 is further provided with a proximity switch 208 and a blocking cylinder 209, the proximity switch 208 is used for detecting whether the loading device 1 is in place, and the system controls the blocking cylinder 209 to block and release the loading device 1 through extension and retraction.

In the present embodiment, the transfer device further includes a vertical transfer unit 3, and the vertical transfer unit 3 is disposed right in front of the horizontal transfer unit 2.

As shown in fig. 12, the vertical transmission unit 3 includes two lifting units arranged in parallel, the lifting units include a lifting cylinder 301 and a lifting cylinder mounting plate 302, an output end of the lifting cylinder 301 is fixedly connected to a carrying mechanism of the loading device, in this embodiment, the carrying mechanism of the loading device is formed by splicing a plurality of carrying

plates

303, 305, 306 for convenience of processing, and in other embodiments, the carrying mechanism of the loading device may also be an integrated structure.

A plurality of guide rods 304 are arranged on the lifting cylinder mounting plate 302, and the material loading device bearing mechanism can move up and down along the guide rods 304 under the action of the lifting cylinder 301.

As shown in fig. 13, a plurality of bull-eye wheels 308 are arranged on the carrying mechanism of the material loading device, and the bull-eye wheels 308 are in sliding fit with the base 101 of the material loading device 1 to reduce the friction force of the material loading device pushing and pulling unit 203 hooking the material loading device 1.

A non-return block 307 is arranged at an inlet of the loading device on the loading mechanism of the loading device, and the non-return block 307 is pivotally arranged on the bearing plate 306; a pressing plate 309 is further arranged at the outlet of the material loading device on the material loading device bearing mechanism.

In an initial state, the bearing surface of the bearing mechanism of the material loading device and the material loading device 1 are located on the same horizontal plane, the blocking module at the upper end of the non-return block 307 is also located at a horizontal position (not shown in the figure), the material loading device 1 is pushed into the vertical transmission unit 3 along the direction X shown in the figure, and after the material loading device 1 completely enters the vertical transmission unit 3, the pressing plate 309 has a limiting effect on the base 101 of the material loading device 1, so that the material loading device 1 is prevented from overturning and causing production accidents in the lifting process. The lifting cylinder 301 drives the material loading device bearing mechanism to move upwards until the material loading device bearing mechanism and the horizontal transmission unit 2 are on the same horizontal plane, and the system controls the horizontal transmission unit 2 to start working, wherein the working process is as described above. In addition, during the ascending process of the loading mechanism of the loading device, the non-return block 307 is turned over under the action of gravity, and the state shown in fig. 13 is maintained, so that the loading device 1 is prevented from sliding out.

As shown in fig. 1, the tray transportation system in this embodiment further includes a large tray and a small tray identification device 4, which is disposed on one side of the transportation device and is used for identifying the size of the tray, and further transporting the identification result to the control system, and the control system executes a corresponding instruction according to the identification result.

As shown in fig. 14 to 15, the large and small tray recognition apparatus 4 includes a second rack 401, a second driving unit, and a second sensing unit. The second frame 401 may take any structure known in the art, and only the specific structure and operation principle of the second transmission unit and the second sensing unit will be described below.

The second transmission unit includes:

a second servo motor 4021 mounted on the second frame 401, wherein an output end of the second servo motor 4021 is provided with a second pulley 4022 and a second transmission belt 4023, the second pulley 4022 is a gear, the inner side of the second transmission belt 4023 is toothed, and the toothed second transmission belt 4023 can be meshed with a tooth slot on the second pulley 4022 to improve the stability of power transmission;

a second guide rail 4024 mounted on the second frame 401, a moving plate 4026 is slidably mounted on the second guide rail 4024, and the moving plate 4026 is mounted on the second guide rail 4024 by a slide block 4025 fixed therebelow;

the moving plate 4026 is connected to the second conveyor 4023 by a

fixing device

4027, 4028, the

fixing device

4027, 4028 includes a third connecting block 4027 and a fourth connecting block 4028 fixedly connected to each other, the third connecting block 4027 and the fourth connecting block 4028 clamp the second conveyor 4023 therein, and the third connecting block 4027 is fixedly connected to the moving plate 4026.

When the second servo motor 4021 works, the second belt wheel 4022 drives the second conveyor belt 4023 to work, and the second conveyor belt 4023 drives the moving plate 4026 to slide back and forth along the second guide rail 4024 through the fixing

devices

4027 and 4028 fixedly connected with the second conveyor belt 4023. The second frame 401 is further provided with two limit blocks 4029, and the two limit blocks 4029 are respectively located at two limit positions of the motion track of the sliding block 4025.

As shown in fig. 15, the second sensing unit includes: the photoelectric detection device comprises a third photoelectric sensor 4041, a fourth photoelectric sensor 4042 and a second induction sheet 4043, wherein the third photoelectric sensor 4041 and the fourth photoelectric sensor 4042 are used for detecting the second induction sheet 4043, and the third photoelectric sensor 4041 and the fourth photoelectric sensor 4042 are groove-type photoelectric sensors.

In this embodiment, the third photoelectric sensor 4041 and the fourth photoelectric sensor 4042 are fixed on the second frame 401, and the second sensing piece 4043 is fixed on the moving plate 4026 and can move back and forth along with the moving plate 4026, it can be understood that, because the third photoelectric sensor 4041, the fourth photoelectric sensor 4042 and the second sensing piece 4043 move relatively, in other embodiments, the second sensing piece 4043 can also be fixed on the second frame 401, and the third photoelectric sensor 4041 and the fourth photoelectric sensor 4042 can also be fixed on the moving plate 4026 and can move back and forth along with the moving plate 4026, which can achieve the purpose of the present invention.

The moving plate 4026 is further provided with an induction plate 4053, the induction plate 4053 is fixed with a plurality of guide posts 4054, the other ends of the guide posts 4054 movably penetrate through an induction plate mounting plate 4052, a return spring (not shown in the figure) is partially or completely sleeved on the guide posts 4054, the induction plate mounting plate 4052 is fixed on the moving plate 4026, the approach switch 4051 is further provided thereon, and one end of the approach switch 4051 is opposite to the induction plate 4053.

In the initial state, the second sensing piece 4043 is located in the sensing slot of the third photoelectric sensor 4041, and a first distance is provided between one end of the proximity switch 4051 close to the sensing board 4053 and the sensing board 4053, and in this embodiment, the first distance is set to be 15 mm. When the loading device 1 carries the material tray to the position right ahead of the large and small material tray identification devices 4, the system controls the large and small material tray identification devices 4 to start working, and the induction plate 4053 moves towards the material tray in the loading device 1 under the action of the second transmission unit. If the sensing plate 4053 is blocked after contacting the material tray, the return spring is compressed, and after the distance between the sensing plate 4053 and the proximity switch 4051 is reduced to a second distance, the proximity switch 4051 is triggered, and the system controls the second transmission unit to stop and return, and meanwhile, the material tray is determined to be a large material tray, in this embodiment, the second distance is set to be 10 mm; if the sensing plate 4053 is not obstructed in the advancing process, and the fourth photoelectric sensor 4042 senses the second sensing piece 4043, the charging tray is determined to be a small charging tray.

In this embodiment, the large tray is not less than 8 inches, such as 8 inches, 11 inches, 13 inches or 15 inches, and the small tray is less than 8 inches, such as 7 inches, and it can be understood that, in other embodiments, a person skilled in the art can define the large tray and the small tray according to actual production needs, and comprehensively set the first distance, the second distance, the distance between the third photoelectric sensor 4041 and the fourth photoelectric sensor 4042, and the distance from the sensing plate 4053 to the tray in an initial state.

In order to protect the proximity switch 4051 from being hit by the sensing plate 4053 in an accidental state, a plurality of limit bolts (not shown, only the limit bolt mounting holes 4055 are shown) are further disposed on the sensing plate mounting plate 4052.

The second rack 401 is further provided with a second drag chain 403, a moving end of the second drag chain 403 is fixed to the moving plate 4026 through a second drag chain connector 4031, and can perform reciprocating linear motion along with the moving plate 4026, and the second drag chain 403 is used for protecting equipment wires and the like from being entangled with each other and damaged in multiple motions.

It is right above the utility model provides a charging tray transmission system has carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a structure and theory of operation have been expounded, and the explanation of above embodiment is only used for helping to understand the utility model discloses a method and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims

1. A tray transport system comprising:

the loading device is used for loading the material tray;

the conveying device is used for conveying the loading device;

it is characterized in that the loading device comprises: the base is provided with a plurality of guide devices; the guide rod is fixedly arranged on the base; and the tray is used for bearing the material tray, penetrates through the guide rod and can slide up and down along the guide rod.

2. The tray transport system of claim 1, wherein the plurality of guides include, but are not limited to, one or more of guide wheels, guide rails, guide slots;

the guide rod is of an integrated structure or a sectional type assembling structure.

3. The tray transport system of claim 2, wherein the top end of the guide bar is provided with visually identifiable structures including, but not limited to, holes, slots, bumps, inserts.

4. The tray conveying system according to claim 2, wherein the guide rod is fixedly mounted on the base by a guide rod fixing structure, the guide rod fixing structure comprises a first positioning block, a second positioning block and a plurality of screws, and the first positioning block is clamped with the tail end of the guide rod through a U-shaped groove in the first positioning block.

5. The tray conveying system according to claim 4, wherein the second positioning block is provided with an accommodating cavity adapted to the shape of the first positioning block, when the guide rod fixing structure is assembled, the first positioning block is clamped in the accommodating cavity, and the tail end of the guide rod and the second positioning block are fixedly connected to the base through the plurality of screws respectively.

6. The tray transport system according to any of claims 2-5, wherein a buffer block is attached under the tray by screws.

7. Tray transport system according to any of claims 2-5, characterized in that the base is made of light material and that several hard material reinforcements are arranged on the stressed part.

8. The tray transport system of any of claims 2-5, wherein the base further comprises a plurality of first access holes/slots, second access holes/slots, locating holes.

9. The tray transport system of claim 1, wherein the transport device comprises a horizontal transport unit comprising a first rack, a first transmission unit, a first sensing unit, and a carrier push-pull unit.

10. The tray transport system of claim 9, wherein the first drive unit comprises:

the first servo motor is arranged on the first rack, and a first belt wheel and a first conveyor belt are arranged at the output end of the first servo motor;

11. The tray transport system of claim 10, wherein the first pulley is a gear, the first belt is toothed on the inside, and the toothed first belt can mesh with a tooth socket on the first pulley.

12. The tray conveying system according to claim 10, wherein the loader push-pull unit comprises a mounting frame, the mounting frame is mounted on a sliding plate, and the sliding plate is mounted on the first guide rail through a sliding block fixed below the sliding plate; follow on the mounting bracket be provided with hook and ejector pad on the extending direction of first guide rail, just the below of hook and ejector pad all is provided with the lift cylinder, lift cylinder fixed mounting in on the mounting bracket.

13. The tray transport system of claim 12, wherein the loader push-pull unit is connected to the first conveyor belt by a fixing device, the fixing device comprises a first connecting block and a second connecting block fixedly connected to each other, the first connecting block and the second connecting block clamp the first conveyor belt therein, and the second connecting block is fixedly connected to the sliding plate.

14. The tray conveying system according to claim 12, wherein the first rack is further provided with two position limiting devices, and the two position limiting devices are respectively located at two extreme positions of the movement track of the sliding block.

15. The tray transport system of claim 12, wherein the first sensing unit comprises: first photoelectric sensor, second photoelectric sensor and first response piece, first photoelectric sensor, second photoelectric sensor all are used for detecting first response piece, first photoelectric sensor, second photoelectric sensor are the cell type photoelectric sensor.

16. The tray conveying system of claim 15, wherein the first and second photosensors are fixed to the first frame, and the first sensor strip is fixed to the slide plate and can move back and forth with the slide plate.

17. The tray conveying system according to any of claims 9 to 16, wherein a plurality of bull's-eye wheels are further provided on the first rack, and the bull's-eye wheels are in sliding fit with the base of the loading device.

18. The tray conveying system according to any one of claims 12 to 16, wherein the first rack is further provided with a first drag chain, and a moving end of the first drag chain is fixed on the sliding plate through a first drag chain connecting piece and can perform reciprocating linear motion along with the loading device push-pull unit.

19. The tray transport system of claim 9, wherein the transport device further comprises a vertical transport unit disposed directly in front of the horizontal transport unit.

20. The tray conveying system according to claim 19, wherein the vertical conveying unit comprises two lifting units arranged in parallel, the lifting units comprise lifting cylinders and lifting cylinder mounting plates, and the output ends of the lifting cylinders are fixedly connected with the loading device carrying mechanism.

21. The tray transport system of claim 20, wherein the lifting cylinder mounting plate is provided with a plurality of guide bars, and the loader carrier is movable up and down along the guide bars by the lifting cylinder.

22. The tray transport system of claim 20 or 21, wherein the loader carrier has a plurality of bull's-eye wheels slidably engaged with the base of the loader.

23. The tray conveying system according to claim 20 or 21, wherein a backstop block is arranged at an inlet of the loading device on the loading device carrying mechanism, and the backstop block is pivotally mounted on the carrying plate; and a pressing plate is further arranged at the outlet of the material loading device on the material loading device bearing mechanism.

24. The tray transport system of claim 1, further comprising a large and small tray identification device disposed on a side of the transport device for identifying the size of the tray.

25. The tray transport system of claim 24, wherein the large and small tray identification device comprises a second rack, a second drive unit, and a second sense unit.

26. The tray transport system of claim 25, wherein the second drive unit comprises:

the output end of the second servo motor is provided with a second belt wheel and a second conveying belt;

a second guide rail installed on the second frame, on which a moving plate is slidably installed;

the moving plate is connected with the second conveyor belt through a fixing device, the fixing device comprises a third connecting block and a fourth connecting block which are fixedly connected with each other, the third connecting block and the fourth connecting block clamp the second conveyor belt in the third connecting block and the fourth connecting block, and the third connecting block is fixedly connected to the moving plate.

27. The tray conveying system according to claim 26, wherein the moving plate further comprises a sensor plate, the sensor plate is fixed with a plurality of guide posts, the other ends of the plurality of guide posts movably penetrate through a sensor plate mounting plate, a return spring is partially or completely sleeved on the plurality of guide posts, the sensor plate mounting plate is fixed on the moving plate, and a plurality of proximity switches are further arranged on the sensor plate, and one ends of the proximity switches are opposite to the sensor plate.

28. The tray transport system of claim 27, wherein the induction plate mounting plate further comprises a plurality of limit bolts.

29. The tray transport system of claim 26, wherein the second pulley is a gear, the second belt is toothed inside, the toothed second belt can mesh with a tooth groove on the second pulley, and the moving plate is mounted on the second guide rail by a sliding block fixed below the moving plate.

30. The tray transport system of claim 26, wherein the second sensing unit comprises: the third photoelectric sensor and the fourth photoelectric sensor are used for detecting the second induction sheet, and the third photoelectric sensor and the fourth photoelectric sensor are groove type photoelectric sensors.

31. The tray transport system of claim 30, wherein the third and fourth photosensors are fixed to the second frame, and the second sensor strip is fixed to the moving plate and can move back and forth with the moving plate.

32. The tray conveying system according to any of claims 26 to 31, wherein a second drag chain is further disposed on the second rack, and a moving end of the second drag chain is fixed to the moving plate through a second drag chain connecting member and can move linearly and reciprocally along with the moving plate.