CN116119368A

CN116119368A - Automatic pallet stacking machine and stacking method for keyboard production line

Info

Publication number: CN116119368A
Application number: CN202111357811.3A
Authority: CN
Inventors: 田荣刚
Original assignee: Shenzhen Hongshengjia Electronics Co ltd
Current assignee: Shenzhen Hongshengjia Electronics Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2023-05-16

Abstract

The invention discloses an automatic pallet stacker and a stacking method for a keyboard production line, which belong to the technical field of keyboard production lines.

Description

Automatic pallet stacking machine and stacking method for keyboard production line

Technical Field

The invention relates to the technical field of keyboard production lines, in particular to an automatic pallet stacking machine and a stacking method for a keyboard production line.

Background

The keyboard is produced through the injection molding machine and is manufactured and formed and then is required to be tidied and collected, and the keyboard is required to be stacked for saving space, so that workers can uniformly collect, tidy and transport the stacked keyboards.

In the prior art, in the keyboard production stacking process, the automatic stacking machine and the stacking method for the keyboard production line tray are mainly carried out manually, so that the manual stacking is low in working efficiency, high in labor cost and low in keyboard production efficiency, and the automatic stacking machine and the stacking method for the keyboard production line tray are designed to solve the problems.

Disclosure of Invention

The invention aims to provide an automatic pallet stacking machine and a stacking method for a keyboard production line, which are used for solving the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an automatic stacker of keyboard production line tray, includes the panel beating frame, the panel beating frame is as the support frame body of whole equipment, and its inside business turn over material both sides set up transport mechanism one and transport mechanism two respectively, transport mechanism one is as feeding transport component, and its terminal side sets up the tray lifting mechanism one that upwards lifts the transmission to the tray, transport mechanism two is as ejection of compact transport component, and its first section side sets up the tray lifting mechanism two that lifts the transmission downwards to the tray, the mechanism is got in the top installation of panel beating frame, get and put the mechanism and can carry out the clamp to get from tray lifting mechanism one and carry out pile up neatly displacement to get the back side of putting the mechanism and set up transfer mechanism, carry out two-way transfer to the keyboard that empty tray and injection molding machine transmitted, the keyboard after the transfer stacks the transmission through tray lifting mechanism two places of transport mechanism, carries out the delivery of stacking the keyboard through transport mechanism two.

As a further improvement of the invention, the first conveying mechanism and the second conveying mechanism both adopt alternating current motors to drive track chains to supply and send out tray trays, the alternating current motors are double-headed motors, the two groups of parallel track chains are driven to drive, and the two groups of track chains drive one conveying belt to transmit.

As a further improvement of the invention, the first tray lifting mechanism and the second tray lifting mechanism have the same structure and comprise a linear servo module A and a lifting claw, wherein the lifting claw is horizontally arranged on the sliding end of the linear servo module A, and is driven to slide up and down by the linear servo module A, so that the lifting claw lifts the keyboard to a designated position.

As a further improvement of the invention, the picking and placing mechanism comprises a linear servo module B, a double bracket and a clamping component, wherein the double bracket is arranged on the sliding end of the linear servo module B, the clamping component is arranged at two ends of the double bracket, and the keyboard is clamped by the clamping component.

As a further improvement of the invention, the clamping assembly comprises a telescopic cylinder, a bottom plate and clamping jaw pieces, wherein the telescopic cylinder is vertically arranged at the mounting end of the double brackets, the bottom plate is fixed at the output end of the telescopic cylinder, the clamping jaw pieces are symmetrically arranged at two ends of the bottom plate, the clamping jaw pieces push the clamping heads to complete clamping action, two ends of a keyboard can be clamped through the clamping jaw pieces, the telescopic cylinder drives the keyboard to move upwards, and the clamped keyboard is conveyed through the linear servo module B.

As a further improvement of the invention, the transfer mechanism comprises a first pen-shaped air cylinder, a sliding rail and a sliding plate; the slide rail is installed in the panel beating frame and perpendicular to gets and puts the mechanism, the top sliding connection slide of slide rail, first pen-shaped cylinder output and one side rigid coupling of slide, first pen-shaped cylinder can drive the slide and slide along the slide rail, with keyboard motion to the bottom of clamping the subassembly.

As a further improvement of the invention, the invention also comprises a push-pull mechanism, wherein the push-pull mechanism is arranged above the sliding plate and comprises a second pen-shaped cylinder and a supporting plate; the supporting plate is arranged on the limiting block and is in sliding fit with the outer side wall of the limiting block; the output end of the second pen-shaped air cylinder is fixedly connected with the supporting plate, and the second pen-shaped air cylinder drives the supporting plate and the keyboard to slide along the limiting block.

As a further improvement of the invention, the invention also comprises a baffle detection mechanism; the device is arranged on the outer sides of the first tray lifting mechanism and the second tray lifting mechanism and comprises a fixing frame body arranged on a sheet metal frame, a plurality of thread adjusting rods and a stabilizing sleeve rod are vertically arranged on the fixing frame body, the inner ends of the thread adjusting rods and the stabilizing sleeve rod are connected with a baffle, the position of the baffle is adjusted by rotating the thread adjusting rods, and the baffle can transmit and limit a keyboard transmitted at one position of the tray lifting mechanism and avoid dislocation.

An automatic stacking method of trays in a keyboard production line comprises the following steps:

s1, automatically feeding an empty material tray bin, and feeding the empty material tray in a storage waiting area;

s2, the mechanism grabs the moving and positioning positions, the tray enters a tray feeding area, and the empty tray transmitted by the tray lifting mechanism is transmitted and positioned by the tray lifting mechanism;

s3, placing products into the tray by the injection molding machine, transferring the tray on a transfer area of the tray, grabbing the empty tray by a picking and placing mechanism, moving the empty tray to a picking position of the injection molding machine by the transfer mechanism, and stacking and placing a keyboard which is well molded by the injection molding machine in a tray picking and placing area;

s4, the mechanism grabs and moves to a discharging bin, the keyboard which is molded in the tray taking and placing area is moved to a tray stacking area through a tray transfer area, and the molded keyboard is moved downwards to a tray discharging area through a tray lifting mechanism; the discharging bin is fully moved to the conveying belt, and the keyboard is conveyed out through the conveying mechanism.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the mutual coordination among the conveying mechanism, the tray lifting mechanism, the picking and placing mechanism and the transfer mechanism, a whole set of keyboard stacking flow can be completed, tray supply and pushing of the keyboard after injection molding are performed between the keyboard stacking flow and the injection molding machine, and the production efficiency is very high;

2. according to the invention, the gripper members are arranged to grasp keyboards at different stations, so that the efficiency of the device for grasping the keyboards is more efficient, the stacking efficiency of the keyboards is improved, the stacked keyboards are lifted by the first servo module and the second servo module, and the first conveying belt mechanism and the second conveying belt mechanism are used for conveying the keyboards, so that the trouble of manually stacking and transporting the keyboards is avoided, the stacking efficiency of the keyboards is improved, and the labor cost is saved;

3. according to the invention, the push-pull mechanism is arranged in the transfer mechanism, so that the conversion between keyboards can be rapidly performed, the cooperation operation with the first tray lifting mechanism and the second tray lifting mechanism is facilitated, the transfer time is greatly shortened, and the transfer efficiency is improved.

4. According to the invention, the baffle detection mechanism is arranged, so that the operation stability of the tray lifting mechanism can be ensured, and the dislocation of the keyboard is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the internal structure of the stacker of the present invention with the outer guard plate removed;

FIG. 3 is a schematic elevational view of the structure of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic view of a sheet metal frame of the present invention;

FIG. 5 is a schematic view of a first or second embodiment of a conveying mechanism according to the present invention;

FIG. 6 is a schematic view of a pick-and-place mechanism according to the present invention;

FIG. 7 is a schematic view of a clamping assembly according to the present invention;

FIG. 8 is a schematic diagram of a transfer mechanism according to the present invention;

FIG. 9 is a schematic diagram of a first tray lifting mechanism or a second tray lifting mechanism according to the present invention;

FIG. 10 is a schematic view of a baffle detection mechanism according to the present invention;

fig. 11 is a schematic diagram of a keyboard production process area stacking method of the automatic stacker of the present invention.

In the drawings, the list of components represented by the various numbers is as follows:

the device comprises a 1-sheet metal rack, a 1 a-conveying mechanism I, a 1B-conveying mechanism II, a 2-picking and placing mechanism, a 201-linear servo module B, a 202-double support, a 203-clamping component, a 2031-telescopic cylinder, a 2032-bottom plate, a 2033-clamping jaw piece, a 3-transfer mechanism, a 301-first pen-shaped cylinder, a 302-slide rail, a 303-slide plate, a 304-second pen-shaped cylinder, a 305-support plate, a 306-limiting block, a4 a-tray lifting mechanism I, a 4B-tray lifting mechanism II, a 401-linear servo module A, a 402-lifting claw, a 501-fixing frame body, a 502-thread adjusting rod, a 503-stabilizing sleeve rod and a 504-baffle.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention provides a technical scheme that: as shown in fig. 1, fig. 2 and fig. 3, an automatic pallet stacker for a keyboard production line comprises a sheet metal rack 1, as shown in fig. 4, wherein the sheet metal rack 1 is used as a supporting frame body of the whole equipment, two sides of an inner feeding and discharging part are respectively provided with a first conveying mechanism 1a and a second conveying mechanism 1b, as shown in fig. 5, the first conveying mechanism 1a is used as a feeding conveying part, the tail end side of the first conveying mechanism 1a is provided with a first pallet lifting mechanism 4a for upwards lifting and transferring a pallet, the second conveying mechanism 1b is used as a discharging conveying part, the first section side of the first conveying mechanism 1b is provided with a second pallet lifting mechanism 4b for downwards lifting and transferring the pallet, as shown in fig. 6, a picking and placing mechanism 2 is arranged above the sheet metal rack 1, the picking and placing mechanism 2 can clamp and place the pallet stacked from the first pallet lifting mechanism 4a, and shift the back side of the picking and placing mechanism 2 is provided with a transfer mechanism 3, the empty pallet and the keyboard transferred by an injection molding machine are transferred in a bidirectional transfer mode, and the transferred keyboard is stacked and transferred to the second conveying mechanism 1b by the second pallet lifting mechanism 4 b.

During production, an operator stacks the keyboard on the surface of the first conveying mechanism 1a, conveys the stacked keyboard tray through the first conveying mechanism 1a, drives the lifting claw 402 to lift through the first conveying mechanism 4a when the keyboard tray is conveyed to a designated position, lifts the keyboard to the designated position through the lifting claw 402, clamps the keyboard tray through the clamping assembly 203, conveys the clamped keyboard through the second conveying mechanism 4b, places the keyboard on the top of the lifting claw 402 on the second conveying mechanism 4b, drives the lifting claw 402 to move downwards through the second conveying mechanism 4b, places the keyboard on the lifting claw 402 on the second conveying mechanism 1b, conveys the keyboard through the second conveying mechanism 1b, avoids stacking and conveying of manual operation keyboards, improves working efficiency and saves labor cost.

Specifically, in the invention, on the transmission mechanism, the first transmission mechanism 1a and the second transmission mechanism 1b have the same structure, the alternating current motor is used for driving the track chains to supply and send out the tray material tray, the alternating current motor is a double-headed motor, two groups of parallel track chains are driven to transmit, and the two groups of track chains drive one conveying belt to transmit and are controlled by the industrial control PLC.

In the invention, as shown in fig. 9, a first tray lifting mechanism 4a and a second tray lifting mechanism 4b have the same structure and comprise a linear servo module A401 and a lifting claw 402, wherein the lifting claw 402 is horizontally arranged on the sliding end of the linear servo module A401, the top of the lifting claw 402 is concave, so that the top of the lifting claw 402 is concave, the keyboard is more stable when the keyboard is lifted, and the keyboard is not easy to fall off, and the lifting claw 402 is driven to slide up and down through the linear servo module A401, so that the keyboard is lifted to a designated position by the lifting claw 402.

The picking and placing mechanism 2 comprises a linear servo module B201, a double bracket 202 and a clamping assembly 203, wherein the double bracket 202 is arranged on the sliding end of the linear servo module B201, the clamping assembly 203 is arranged at two ends of the double bracket 202, and a keyboard is clamped through the clamping assembly 203.

In the invention, as shown in fig. 7, on a clamping assembly 203, the clamping assembly 203 comprises a telescopic cylinder 2031, a bottom plate 2032 and clamping jaw members 2033, wherein the telescopic cylinder 2031 is vertically arranged on the installation end of a double bracket 202, the bottom plate 2032 is fixed on the output end of the telescopic cylinder 2031, the clamping jaw members 2033 are symmetrically arranged at two ends of the bottom plate 2032, clamping heads are pushed by the cylinder members to complete clamping actions, two ends of a keyboard can be clamped by the clamping jaw members 2033, the telescopic cylinder 2031 drives the keyboard to move upwards, and the clamped keyboard is conveyed by a linear servo module B201.

When the keyboard lifting mechanism is operated, when the lifting claw 402 of the first tray lifting mechanism 4a lifts the keyboard to a designated position, the telescopic cylinder 2031 drives the bottom plate 2032 and the clamping assembly 203 to move, two ends of the keyboard are clamped through the clamping jaw pieces 2033, the telescopic cylinder 2031 drives the keyboard to move upwards, and the clamped keyboard is conveyed through the linear servo module B201.

In the invention, on a transfer mechanism 3, as shown in fig. 8, the transfer mechanism 3 comprises a first pen-shaped cylinder 301, a sliding rail 302 and a sliding plate 303; the slide rail 302 is mounted on the sheet metal rack 1 and is perpendicular to the picking and placing mechanism 2, the top of the slide rail 302 is connected with the slide plate 303 in a sliding manner, the output end of the first pen-shaped air cylinder 301 is fixedly connected with one side of the slide plate 303, the first pen-shaped air cylinder 301 can drive the slide plate 303 to slide along the slide rail 302, and the keyboard is moved to the bottom of the clamping assembly 203.

During operation, a keyboard produced by the injection molding machine is placed at the top of the sliding plate 303, the first pen-shaped air cylinder 301 is started, the sliding plate 303 is driven by the first pen-shaped air cylinder 301 to slide along the sliding rail 302, the keyboard moves to the bottom of the clamping assembly 203, and after the clamping jaw piece 2033 clamps the keyboard, the keyboard is conveyed through the linear servo module B201.

A push-pull mechanism is used in the transfer process and is arranged above the sliding plate 303, and the push-pull mechanism comprises a second pen-shaped cylinder 304 and a supporting plate 305; the supporting plate 305 is arranged on the limiting block 306 and is in sliding fit with the outer side wall of the limiting block 306; the output end of the second pen-shaped air cylinder 304 is fixedly connected with the supporting plate 305, and the second pen-shaped air cylinder 304 drives the supporting plate 305 and the keyboard to slide along the limiting block 306.

During operation, the keyboard produced by the injection molding machine is placed at the top of the supporting plate 305, the second pen-shaped air cylinder 304 drives the supporting plate 305 and the keyboard to slide along the limiting block 306, the first pen-shaped air cylinder 301 drives the sliding plate 303 to move, the keyboard is positioned at the bottom of the clamping component 203, and the clamping jaw piece 2033 clamps the keyboard.

The invention further comprises a baffle detection mechanism 5 which is arranged on the outer sides of the first tray lifting mechanism 4a and the second tray lifting mechanism 4b and comprises a fixing frame body 501 arranged on a sheet metal frame 1, a plurality of thread adjusting rods 502 and a stabilizing sleeve rod 503 are vertically arranged on the fixing frame body 501, the inner end parts of the thread adjusting rods 502 and the stabilizing sleeve rod 503 are connected with a baffle 504, the position of the baffle 504 is adjusted through rotating the thread adjusting rods 502, and the baffle 504 can carry out transmission limit on the keyboard transferred at the position of the first tray lifting mechanism 4a to avoid dislocation as shown in fig. 10.

As some improved embodiments, a plurality of groups of protection plates can be arranged on the outer side wall of the sheet metal rack 1, and as a sound insulation mechanism, the sound absorbing plate is made of polyester fiber, and the sound absorbing plate 24 made of polyester fiber has the advantages of good sound absorbing effect, moisture resistance, mildew resistance and good stability; during operation, through set up the guard plate in panel beating frame 1 outside and protect panel beating frame 1 inside spare part, carry out the absorption of noise, noise pollution is reduced through setting up the mechanism that gives sound insulation.

As some improved embodiments, a cleaning mechanism is arranged at the bottom of the first conveying mechanism 1a and the second conveying mechanism 1 b; the cleaning mechanism comprises a brush plate and a cleaning brush; the brush plate is fixedly connected to the side wall of the sheet metal rack 1; the cleaning brush is fixedly connected to the top of the brush plate and is contacted with the bottoms of the conveyor belts of the first conveyor mechanism 1a and the second conveyor mechanism 1 b; during operation, dust particles on the surface of the conveyor belt are brushed off through the cleaning brush 28, so that the surface of the conveyor belt is ensured to be clean, and the trouble that more dust and impurities are adhered to the surface of the conveyor belt and need to be cleaned manually is avoided.

An automatic stacking method of trays in a keyboard production line comprises the following steps: as shown in the figure 11 of the drawings,

The whole working principle of the invention is that an operator stacks a keyboard on the surface of a first conveying mechanism 1a, conveys the stacked keyboard through the first conveying mechanism 1a, drives a lifting claw 402 to lift through a first tray lifting mechanism 4a when the keyboard is conveyed to a designated position, lifts the keyboard to the designated position by the lifting claw 402, enables the keyboard at the top of the lifting claw 402 to be positioned at the bottom of a clamping claw member 2033 of a clamping assembly 203, places the keyboard produced by an injection molding machine at the top of a supporting plate 305, drives the supporting plate 305 and the keyboard to slide along a limiting block 306 by a second pen-shaped cylinder 304, then starts a first pen-shaped cylinder 301, drives a sliding plate 303 to slide along a sliding rail 302, enables the keyboard to move to the bottom of the clamping claw member 2033, respectively clamps the keyboard at the top of the supporting plate 305 and the keyboard at the top of the lifting claw 402 by the clamping claw member 2033, and starts a telescopic cylinder 2031 to drive the clamped keyboard to move upwards;

the keyboard clamped is conveyed through the linear servo module B201, the keyboard positioned at the bottom of the clamping jaw piece 2033 of the second tray lifting mechanism 4B is sequentially placed at the top of the lifting claw 402 on the linear servo module A401 of the second tray lifting mechanism 4B, so that the keyboard is stacked at the top of the lifting claw 402, the lifting claw 402 is driven to move downwards through the linear servo module A401 after the keyboard is stacked, the keyboard on the lifting claw 402 is placed on the second conveying mechanism 1B, the keyboard is conveyed through the second conveying mechanism 1B, the clamping and stacking of the keyboards of a plurality of stations are realized, the stacking and conveying of the keyboards are avoided, the working efficiency is improved, and the labor cost is saved.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. An automatic stacker of keyboard production line tray, its characterized in that: including panel beating frame (1), panel beating frame (1) is as the support frame body of whole equipment, and its inside business turn over material both sides set up transport mechanism one (1 a) and transport mechanism two (1 b) respectively, transport mechanism one (1 a) is as feeding transport component, and its terminal side sets up carries out the tray lifting mechanism one (4 a) of upwards lifting the transmission to the tray, transport mechanism two (1 b) are as ejection of compact transport component, and its first section side sets up carries out the tray lifting mechanism two (4 b) of downwards lifting the transmission to the tray, get and put mechanism (2) in the top installation of panel beating frame (1), get and put mechanism (2) can carry out the clamp to the tray that piles up from tray lifting mechanism one (4 a) to carry out pile up the displacement, get the back side of putting mechanism (2) and set up transfer mechanism (3), carry out two-way transfer to the keyboard that empty tray and injection molding machine transmitted, the keyboard after the transfer stacks the transmission to transport mechanism two (1 b) department through tray lifting mechanism two (4 b), carries out the keyboard after the transfer and carries out the code.

2. The automated stacker of claim 1 wherein: the first conveying mechanism (1 a) and the second conveying mechanism (1 b) both adopt alternating current motors to drive track chains to supply and send out tray trays, the alternating current motors are double-headed motors, two groups of parallel track chains are driven to drive, and the two groups of track chains drive one conveying belt to transmit.

3. The automated stacker of claim 1 wherein: the first tray lifting mechanism (4 a) and the second tray lifting mechanism (4 b) are identical in structure and comprise a linear servo module A (401) and a lifting claw (402), the lifting claw (402) is horizontally arranged on the sliding end of the linear servo module A (401), the lifting claw (402) is driven to slide up and down through the linear servo module A (401), and the lifting claw (402) lifts the keyboard to a designated position.

4. The automated stacker of claim 1 wherein: get and put mechanism (2) including linear servo module B (201), double bracing (202) and clamp and get subassembly (203), double bracing (202) are installed on the slip end of linear servo module B (201), clamping subassembly (203) are all installed at both ends of double bracing (202), clamp the keyboard through clamping subassembly (203).

5. The automated stacker of claim 4 wherein: the clamping assembly (203) comprises a telescopic cylinder (2031), a bottom plate (2032) and clamping jaw pieces (2033), the telescopic cylinder (2031) is vertically arranged at the installation end of the double support (202), the bottom plate (2032) is fixed at the output end of the telescopic cylinder (2031), the clamping jaw pieces (2033) are symmetrically arranged at the two ends of the bottom plate (2032), clamping actions are achieved by pushing the clamping heads through the cylinder pieces, the two ends of a keyboard can be clamped through the clamping jaw pieces (2033), the telescopic cylinder (2031) drives the keyboard to move upwards, and the clamped keyboard is conveyed through the linear servo module B (201).

6. The automated stacker of claim 5 wherein: the transfer mechanism (3) comprises a first pen-shaped air cylinder (301), a sliding rail (302) and a sliding plate (303); the sliding rail (302) is arranged on the sheet metal rack (1) and is perpendicular to the picking and placing mechanism (2), the top of the sliding rail (302) is connected with the sliding plate (303) in a sliding mode, the output end of the first pen-shaped air cylinder (301) is fixedly connected with one side of the sliding plate (303), the first pen-shaped air cylinder (301) can drive the sliding plate (303) to slide along the sliding rail (302), and the keyboard is moved to the bottom of the clamping assembly (203).

7. The automated stacker of claim 6 wherein: the sliding plate (303) is arranged above the sliding plate, and the sliding mechanism comprises a second pen-shaped cylinder (304) and a supporting plate (305); the supporting plate (305) is arranged on the limiting block (306) and is in sliding fit with the outer side wall of the limiting block (306); the output end of the second pen-shaped air cylinder (304) is fixedly connected with the supporting plate (305), and the second pen-shaped air cylinder (304) drives the supporting plate (305) and the keyboard to slide along the limiting block (306).

8. The automated stacker of claim 1 wherein: still include baffle detection mechanism (5), its outside that sets up in tray lifting mechanism one (4 a) and tray lifting mechanism two (4 b), including installing mount body (501) on panel beating frame (1), vertical installation a plurality of screw thread regulation pole (502) and stable loop bar (503) on mount body (501), the inner tip connection baffle (504) of screw thread regulation pole (502) and stable loop bar (503), through the position of rotatory screw thread regulation pole (502) regulation baffle (504), baffle (504) can transmit spacingly to the keyboard of tray lifting mechanism one (4 a) position transmission, avoid dislocation.

9. An automatic stacking method of trays in a keyboard production line is characterized by comprising the following steps: