Automatic opening plate swing mechanism

Abstract

This invention relates to an automatic opening plate placement mechanism, comprising: a frame, an opening plate, a punch, a conveying mechanism, a punch pushing mechanism, an opening plate pushing mechanism, and an opening plate support mechanism. The conveying mechanism and the punch pushing mechanism are respectively disposed at both ends of the frame. The opening plate support mechanism is fixed in the middle of the frame and is located between the conveying mechanism and the punch pushing mechanism. The opening plate is a disc-shaped structure with one end open. The opening plate has a first state disposed on the conveying mechanism and / or a second state disposed on the opening plate support mechanism. The first state and the second state of the opening plate have different inclination angles. The opening plate pushing mechanism is located below the opening plate support mechanism and is used to lift the opening plate and change it from the first state to the second state. This invention realizes automatic placement and storage of the punch bead after turning, ensuring that the lens is not scratched and facilitating subsequent processes.

Description

Technical Field

[0001] This invention relates to the field of contact lens manufacturing technology, specifically to an automatic opening disc arranging mechanism. Background Technology

[0002] In the production of contact lenses, the mold needs to be stored. During the storage process, the mold should be kept upright. Under the premise of keeping the mold upright, it is also necessary to ensure that the mold is stable and does not fall apart, so as to save storage space and improve storage speed.

[0003] Chinese Patent CN111113963B discloses a device and method for extracting dry contact lenses. The stacking and storage operation is achieved by a conveyor motor, a conveyor belt and a lifting mechanism. However, this stacking method is inefficient and the conveying speed is slow. If the conveying speed of the conveyor motor is increased to improve efficiency according to the content described in this document, it will lead to unstable placement of the punches and easy scattering.

[0004] Chinese patent CN214527229U discloses a packaging bag discharging and stacking device. The device uses a roller to continuously reciprocate and slap the packaging bags onto a collection plate, achieving automatic stacking. However, this slapping-style stacking of packaging bags results in significant vibration, making it unsuitable for use with high-stability dies. Furthermore, the patent cannot lock the conveyor belt, leading to a chain reaction between the packaging bags and the risk of them falling due to excessive speed. This makes it unsuitable for contact lens dies where stability is critical. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic open tray placement mechanism to solve the above problems.

[0006] To achieve the above objectives, the following technical solutions are provided:

[0007] An automatic opening tray placement mechanism includes: a frame, an opening tray, a punch, a conveying mechanism, a punch pushing mechanism, an opening tray pushing mechanism, and an opening tray support mechanism. The conveying mechanism and the punch pushing mechanism are respectively disposed at both ends of the frame. The opening tray support mechanism is fixed in the middle of the frame and is located between the conveying mechanism and the punch pushing mechanism. The opening tray is a disc-shaped structure with one end open. The opening tray has a first state disposed on the conveying mechanism and / or a second state disposed on the opening tray support mechanism. The first state and the second state of the opening tray have different inclination angles. The opening tray pushing mechanism is located below the opening tray support mechanism and is used to lift the opening tray and change it from the first state to the second state.

[0008] Preferably, the opening plate in the first state is parallel to the horizontal plane, and the opening plate in the second state is inclined along the horizontal plane to the end away from the opening.

[0009] Preferably, the conveying mechanism includes a slide rail, a gravity roller, a pair of guide rollers for applying sliding resistance to the open disc, and a pair of baffles to prevent the open disc from overturning. The pair of baffles are both bent. The slide rail is fixed between the two inner side walls of the frame. The open disc in the first state is set on the slide rail. The gravity roller is set at one end of the slide rail for pushing the open disc to move along the slide rail. The pair of baffles and the pair of guide rollers are symmetrically hinged to the two inner side walls of the frame near the slide rail. The front and rear ends of the left and right side walls of the open disc are both extended outward, so that the front and rear ends of the open disc in the first state can respectively abut against the pair of guide rollers and the pair of baffles.

[0010] Preferably, the slide rail is slotted at one end near the opening plate pushing mechanism for the opening plate pushing mechanism to push the opening plate. The opening plate on the slide rail can be set at a first position between a pair of baffles and a pair of rollers, or at a second position corresponding to the opening plate pushing mechanism above it.

[0011] Preferably, the punch pushing mechanism includes a support plate, a first cylinder arranged horizontally, and a second cylinder arranged vertically. The support plate is fixedly connected to the frame and corresponds to one side of the opening end of the opening plate at the second position. The support plate is parallel to the opening plate at the second position. A certain number of positioning holes are arranged side by side on the end of the support plate near the first cylinder. The pushing end of the second cylinder is fixedly connected to a number of columns matching the number of positioning holes for passing through the positioning holes. The punch can be sleeved on the top of the column. The outer diameter of the punch is larger than the diameter of the positioning hole. Furthermore, the punch can also straddle the positioning holes of the support plate. The pushing end of the first cylinder is fixedly connected to a push plate for pushing the punch onto the opening plate at the second position.

[0012] Preferably, the opening plate pushing mechanism includes a third cylinder and a lifting assembly arranged vertically. The lifting assembly is fixed to the pushing end of the third cylinder. The lifting assembly includes a lifting block arranged near the slide and a lifting fork arranged near the punch pushing mechanism. The top of the lifting block has a first groove for lifting the opening plate. The rear sidewall of the opening plate extends downward with a first protrusion that cooperates with the first groove. One end of the lifting fork has an arcuate groove for lifting the opening plate. The bottom of the opening plate has two symmetrical arcuate protrusions. The lifting fork abuts against the two arcuate protrusions on the opening plate at the second position.

[0013] Preferably, the arcuate groove is semi-closed, so that when the lifting fork abuts against the open plate at the second position, it can restrict the movement of all open plates on the slide along the slide. There is a certain distance between the first protrusion on the open plate at the second position and the first groove on the lifting block. The pushing end of the third cylinder can push the lifting assembly, and then the lifting fork pushes the open plate at the second position, so that the open plate at the second position rotates around its rear fulcrum until the first protrusion abuts against the first groove on the lifting block. When the first protrusion abuts against the first groove, the lifting assembly pushes the open plate to change from rotation to vertical movement. The lifting block can also be used to restrict the movement of all open plates on the slide along the slide. When there is no open plate at the second position, the open plate at the first position slides to the second position.

[0014] Preferably, the opening plate support mechanism includes a certain number of positioning blocks and a certain number of movable stops. The positioning blocks are fixedly connected to the frame and are slotted. The slots of the positioning blocks abut against the four corners of the opening plate to limit the position of the opening plate. The movable stops are hinged to the frame and are locked in one direction. The left and right side walls of the opening plate have a certain number of second protrusions extending outward. The movable stops and the second protrusions can abut against each other and be fixed in one direction, and abut against each other and rotate in the other direction, so that the opening plate can pass through and be mounted on the movable stops.

[0015] Preferably, a lifting assembly is provided in the middle of the left and right side walls of the opening plate. The lifting assembly includes a connecting seat and a lifting pin. The lifting pin is fixedly connected to the top of the connecting seat. The bottom of the connecting seat has a pin hole that matches the lifting pin. The connecting seat on the opening plate in the first state abuts against the slide rail. The connecting seat on the opening plate in the second state is parallel to the horizontal plane. A lifting groove that matches the first protrusion is also provided on the rear side wall of the opening plate. The opening plate in the second state can be stacked by the cooperation of the lifting pin and the pin hole and / or the cooperation of the first protrusion and the lifting groove.

[0016] Preferably, the rear sidewall of the open plate is provided with a clamping hole for clamping operation and a ventilation recess for balancing the air pressure between stacked open plates.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. This invention enables automatic tray storage of machined punches, ensuring that the lens is not scratched and facilitating transfer to subsequent processes;

[0019] 2. The first and second states of the open plate of the present invention have different tilt angles. In the first state, the angle between the open plate and the slide is just enough to prevent it from falling off the slide. The sliding of the open plate is controlled by the gravity pressure roller, which makes the control more precise. In the second state, the open plate can be stacked on the open plate support mechanism by its own structure, which reduces the structural complexity while ensuring stable stacking. The structure of the connecting seat provides resistance to the open plate in the first state to prevent it from falling off the slide quickly, and provides stable support for the stacking of the open plates, which improves the efficiency of the structural application.

[0020] 3. In the first state of the present invention, the opening plate is parallel to the horizontal plane on the premise of ensuring that it does not slip off the slide. Thus, the punch pushing mechanism can smoothly push the punch onto the opening plate, preventing the punch from falling off or even being damaged due to the angle factor. In the second state, the inclined opening plate can slide the punch to the end away from the opening, thus further preventing the punch from falling off.

[0021] 4. In this invention, the opposing force of a pair of baffles on the open plate is always applied in the direction of straightening the open plate into the slide, thereby ensuring that the open plate in the first position will not overturn or flip. A pair of baffle rollers abut against the front end of the open plate, and the pair of baffle rollers always apply force to the open plate in a fixed direction that hinders the downward sliding of the open plate, effectively controlling the falling process of the open plate and preventing errors due to falling too fast, which would affect the device itself and the working process of the device.

[0022] 5. The semi-enclosed arc groove of the present invention prevents the open plate from continuing to slide along the slide. On the other hand, when the arc-shaped protrusion and the groove structure come into contact alone, they mainly rotate relative to each other. This achieves the effect of the lifting fork in this embodiment pushing the open plate to rotate. After the lifting block completes the pushing work of the previous open plate, it falls back to its original position. At this time, there is no open plate in the second position. The open plate in the first position slides to the second position, and the automatic placement and mounting of the open plate is repeated. Attached Figure Description

[0023] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;

[0024] Figure 2 for Figure 1 A partial schematic diagram;

[0025] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point a;

[0026] Figure 4 This is a three-dimensional illustration of the present invention. Figure 2 ;

[0027] Figure 5 This is the front view of the present invention;

[0028] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point b;

[0029] Figure 7 This is a cross-sectional schematic diagram of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of an open-faced plate;

[0031] Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point c in the middle;

[0032] Figure 10 This is a rear view of the open-end plate;

[0033] Figure 11 This is a top sectional view of an open disc;

[0034] Figure 12 This is a side sectional view of an open disc;

[0035] In the diagram: 1-Frame, 2-Opening plate, 201-First protrusion, 202-Arc protrusion, 203-Second protrusion, 204-Lifting groove, 205-Clamping hole, 206-Ventilation recess, 3-Punch, 4-Slide rail, 5-Gravity roller, 6-Stop roller, 7-Baffle, 8-Bearing plate, 801-Positioning hole, 9-First cylinder, 901-Push plate, 10-Second cylinder, 1001-Column, 11-Third cylinder, 12-Lifting assembly, 13-Lifting block, 1301-First groove, 14-Lifting fork, 1401-Arc groove, 15-Positioning block, 16-Modible stop, 17-Connecting seat, 1701-Lifting pin, 1702-Pin hole. Detailed Implementation

[0036] The technical solutions of the structural schematic diagrams in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] An automatic opening tray placement mechanism includes: a frame 1, an opening tray 2, a punch 3, a conveying mechanism, a punch pushing mechanism, an opening tray pushing mechanism, and an opening tray support mechanism. The conveying mechanism and the punch pushing mechanism are respectively located at both ends of the frame 1. The opening tray support mechanism is fixed in the middle of the frame 1, correspondingly located between the conveying mechanism and the punch pushing mechanism. The opening tray 2 is a disc-shaped structure with one end open. The opening tray 2 has a first state set on the conveying mechanism and / or a second state set on the opening tray support mechanism. The first state and the second state of the opening tray 2 have different inclination angles. In the first state, the angle between the open plate 2 and the slide 4 on the conveying mechanism is just enough to prevent it from falling off the slide 4. The sliding of the open plate 2 is controlled by the gravity roller 5 on the conveying mechanism, which makes the control more precise. The open plate pushing mechanism is located below the open plate support mechanism. The open plate pushing mechanism is used to lift the open plate and change it from the first state to the second state. On the one hand, the open plate pushing mechanism can lift the open plate from the conveying mechanism to the open plate support mechanism. On the other hand, it can change the tilt angle of the open plate 2 to change it from the first state to the second state.

[0038] In some embodiments, the opening plate 2 in the first state is parallel to the horizontal plane, and the opening plate 2 in the second state is inclined along the horizontal plane to the end away from the opening. In the first state, the opening plate 2 is parallel to the horizontal plane on the premise of ensuring that it does not slip off the slide 4. Thus, the punch pushing mechanism can smoothly push the punch 3 onto the opening plate 2 to prevent the punch 3 from falling off or even being damaged due to the angle factor. In the second state, the inclined opening plate 2 can slide the punch 3 to the end away from the opening, thus further preventing the punch 3 from falling off.

[0039] In some embodiments, the conveying mechanism includes a slide rail 4, a gravity roller 5, a pair of guide rollers 6 for applying sliding resistance to the opening disc, and a pair of baffles 7 for preventing the opening disc from overturning. Both baffles 7 are bent. The slide rail 4 is fixed between the two inner sidewalls of the frame 1. The opening disc 2 in its first state is disposed on the slide rail 4. The gravity roller 5 is disposed at one end of the slide rail 4 to push the opening disc 2 along the slide rail 4. The pair of baffles 7 and the pair of guide rollers 6 are symmetrically hinged to the two inner sidewalls of the frame 1 near the slide rail 4. The front and rear ends of the left and right sidewalls of the opening disc 2 extend outwards, so that the front and rear ends of the opening disc 2 in its first state can respectively abut against the pair of guide rollers 6 and the pair of baffles 7. The pair of baffles 7 abut against the rear end of the opening disc 2. Furthermore, the baffles 7 are bent so that when the open plate 2 in the second position is pushed and rotated by the open plate pushing mechanism, the pair of bent baffles 7 can generate a reverse force according to any direction and any size of tilt of the open plate 2 in the first position. The reverse force of the pair of baffles 7 on the open plate 2 is always applied in the direction of straightening the open plate 2 into the slide 4, thereby ensuring that the open plate 2 in the first position will not overturn or flip. The pair of baffle rollers 6 abut against the front end of the open plate 2. The pair of baffle rollers 6 always apply force to the open plate 2 in a fixed direction that hinders the downward sliding of the open plate 2, effectively controlling the falling process of the open plate 2 and preventing errors due to falling too fast, which would affect the device itself and the device's working process.

[0040] In some embodiments, the slide 4 is slotted at one end near the opening plate 2 pushing mechanism for the opening plate pushing mechanism to push the opening plate 2. The opening plate 2 on the slide can be set at a first position between a pair of baffles 7 and a pair of rollers 6, or it can be set at a second position corresponding to the opening plate pushing mechanism above the opening plate pushing mechanism.

[0041] In some embodiments, the punch pushing mechanism includes a support plate 8, a first cylinder 9 arranged horizontally, and a second cylinder 10 arranged vertically. The support plate 8 is fixedly connected to the frame 1, corresponding to one side of the opening end of the opening plate 2 at the second position. The support plate 8 is parallel to the opening plate 2 at the second position. A certain number of positioning holes 801 are arranged side by side on one end of the support plate 8 near the first cylinder 9. The pushing end of the second cylinder 10 is fixedly connected to a number of columns 1001 that match the number of positioning holes 801 for passing through the positioning holes 801. The punch 3 can be sleeved on the top of the column 1001. The outer diameter of the punch 3 is larger than the diameter of the positioning hole 801, and the punch 3 can also straddle the positioning holes 801 of the support plate 8. The pushing end of the first cylinder 9 is fixed. A push plate 901 is connected to push the punch 3 onto the open plate 2 at the second position. The second cylinder 10 first pushes the column 1001 through the positioning hole 801. The punch 3 is sequentially loaded onto each column 1001 by the robotic arm, reducing the position memory points of the robotic arm and improving work efficiency. After the punch 3 is loaded, the second cylinder 10 drives the column 1001 to retract. At this time, since the outer diameter of the punch 3 is larger than the diameter of the positioning hole 801, the punch 3 is left on the support plate 8. The first cylinder 9 pushes the punch 3 through the push plate 901. On the one hand, it can push the punch 3 onto the open plate 2. On the other hand, the punches 3 placed in a single row on the support plate 8 are uniformly pushed. The push plate 901 can push the punches 3 in an even manner, improving the punch 3 storage effect.

[0042] In some embodiments, the opening plate pushing mechanism includes a third cylinder 11 arranged in a vertical direction and a lifting assembly 12. The third cylinder 11 is fixed to the frame, and the lifting assembly 12 is fixed to the pushing end of the third cylinder 11. The lifting assembly 12 includes a lifting block 13 arranged near the slide rail 4 and a lifting fork 14 arranged near the punch pushing mechanism. The top of the lifting block 13 is provided with a first groove 1301 for lifting the opening plate 2. The rear sidewall of the opening plate 2 extends downward with a first protrusion 201 that cooperates with the first groove 1301. One end of the lifting fork 14 is provided with an arc groove 1401 for lifting the opening plate 2. The bottom of the opening plate 2 is symmetrically provided with two arc protrusions 202. The lifting fork 14 abuts against the two arc protrusions 202 on the opening plate 2 at the second position. The cooperation between the first protrusion 201 and the first groove 1301 is used to push and lift the opening plate 2.

[0043] In some embodiments, the arcuate groove 1401 is semi-closed, so that when the lifting fork 14 abuts against the open plate 2 at the second position, it can restrict the movement of all the open plates 2 on the slide 4 along the slide 4. There is a certain distance between the first protrusion 201 on the open plate 2 at the second position and the first groove 1301 on the lifting block 13. The pushing end of the third cylinder 11 can push the lifting assembly 12, so that the lifting fork 14 pushes the open plate 2 at the second position, causing the open plate 2 at the second position to rotate around its rear fulcrum until the first protrusion 201 abuts against the first groove 1301 on the lifting block 12. When the first protrusion 201 abuts against the first groove 1301, the lifting assembly 12 pushes the open plate 2 from rotation to vertical movement. The lifting block 13 can also be used to restrict the movement of all the open plates 2 on the slide 4 along the slide 4. When there is no open plate 2 at the second position, the open plate 2 at the first position slides to the second position, and the semi-closed arcuate groove 1401 is partially closed. The arc groove 1401 prevents the open plate 2 from continuing to slide along the slide 4. On the other hand, when the arc-shaped protrusion and the groove structure come into contact alone, they mainly rotate relative to each other, thereby achieving the effect of the lifting fork 14 in this embodiment to push the open plate 2 to rotate. The lifting fork 14 flips the open plate 2 until its first protrusion 201 contacts the first groove 1301 of the lifting block. At this time, the lifting fork 14 and the lifting block 13 jointly push the open plate 2 from rotation to vertical movement, and then place it on the open plate support mechanism. During the process of the open plate 2 in the first position being lifted and pushed upward, the lifting block 13 gradually replaces the open plate 2 to restrict the movement of the subsequent open plate 2 on the slide 4. After the lifting block 13 completes the pushing work of the previous open plate 2, it falls back to its original position. At this time, there is no open plate 2 in the second position. The open plate 2 in the first position slides to the second position, and the automatic placement and shelving operation of the open plate 2 is repeated.

[0044] In some embodiments, the opening plate support mechanism includes a certain number of positioning blocks 15 and a certain number of movable blocks 16. The positioning blocks 15 are fixedly connected to the frame 1. The positioning blocks 15 are slotted and the slots of the positioning blocks 15 abut against the four corners of the opening plate 2, thereby limiting the position of the opening plate 2. The movable blocks 16 are hinged to the frame 1 and are unidirectionally locked. A certain number of second protrusions 203 extend outward from the left and right side walls of the opening plate 2. The movable blocks 16 and the second protrusions 203 can abut against each other and be fixed in one direction, and abut against each other and rotate in the other direction, thereby allowing the opening plate 2 to pass through and be mounted on the movable blocks 16.

[0045] In some embodiments, a lifting assembly is further provided in the middle of the left and right side walls of the opening plate 2. The lifting assembly includes a connecting seat 17 and a lifting pin 1701. The lifting pin 1701 is fixedly connected to the top of the connecting seat 17. The bottom of the connecting seat 17 is provided with a pin hole 1702 that matches the lifting pin 1701. In the first state, the connecting seat 17 on the opening plate 2 abuts against the slide rail 4. In the second state, the connecting seat 17 on the opening plate is parallel to the horizontal plane. A lifting groove 204 that matches the first protrusion 201 is also provided on the rear side wall of the opening plate 2. The opening plate 2 in the second state can be opened by the cooperation of the lifting pin 1701 and the pin hole 1702. / or the first protrusion 201 and the lifting groove 204 are stacked together, and the open plate 2 in the second state is stacked on the open plate support mechanism by its own structural cooperation. While ensuring stable stacking, the structural complexity is reduced. The structure of the connecting seat 17 provides resistance to the open plate 2 in the first state to prevent it from falling quickly from the slide 4, and provides stable support for the stacking of the open plate 2, which improves the efficiency of structural application. The cooperation between the lifting pin 1701 and the pin hole 1702 and / or the cooperation between the first protrusion 201 and the lifting groove 204 realizes a double insurance function to prevent the open plate 2 from falling when stacked.

[0046] In some embodiments, the rear sidewall of the opening plate 2 is provided with a clamping hole 205 for clamping operation and a ventilation recess 206 for balancing the air pressure between the stacked opening plates 2, which improves the operability of the opening plate 2 and prevents the stacked opening plates 2 from sticking together tightly due to atmospheric pressure issues, thus affecting operation.

Claims

1. An automatic open-plate tray balancing mechanism, characterized in that: include: The frame comprises an open plate, a punch, a conveying mechanism, a punch pushing mechanism, an open plate pushing mechanism, and an open plate support mechanism. The conveying mechanism and the punch pushing mechanism are respectively located at both ends of the frame. The open plate support mechanism is fixed in the middle of the frame and is located between the conveying mechanism and the punch pushing mechanism. The open plate is a disc-shaped structure with one end open. The open plate has a first state on the conveying mechanism and a second state on the open plate support mechanism. The first state and the second state of the open plate have different inclination angles. The open plate pushing mechanism is located below the open plate support mechanism and is used to lift the open plate and change it from the first state to the second state. In the first state, the open plate is parallel to the horizontal plane, and in the second state, the open plate is tilted along the horizontal plane towards the end away from the opening. The conveying mechanism includes a slide rail, a gravity roller, a pair of guide rollers for applying sliding resistance to the open disc, and a pair of baffles to prevent the open disc from overturning. The pair of baffles are both bent. The slide rail is fixed between the two inner side walls of the frame. The open disc in the first state is set on the slide rail. The gravity roller is set at one end of the slide rail for pushing the open disc to move along the slide rail. The pair of baffles and the pair of guide rollers are symmetrically hinged to the two inner side walls of the frame near the slide rail. The front and rear ends of the left and right side walls of the open disc are both extended outward, so that the front and rear ends of the open disc in the first state can respectively abut against the pair of guide rollers and the pair of baffles. The slide rail is slotted at one end near the opening plate pushing mechanism for the opening plate pushing mechanism to push the opening plate. The opening plate on the slide rail is located at a first position between a pair of baffles and a pair of rollers, or at a second position corresponding to the opening plate pushing mechanism above it. The punch pushing mechanism includes a support plate, a first cylinder arranged horizontally, and a second cylinder arranged vertically. The support plate is fixedly connected to the frame and is located on one side of the opening end of the opening plate at the second position. The support plate is parallel to the opening plate at the second position. A certain number of positioning holes are arranged side by side on the end of the support plate near the first cylinder. The pushing end of the second cylinder is fixedly connected to a number of columns that match the number of positioning holes and are used to pass through the positioning holes. The punch is sleeved on the top of the column. The outer diameter of the punch is larger than the diameter of the positioning hole, so that the punch spans the positioning hole of the support plate. The pushing end of the first cylinder is fixedly connected to a push plate for pushing the punch to the opening plate at the second position.

2. The automatic opening tray arrangement mechanism according to claim 1, characterized in that: The opening plate pushing mechanism includes a third cylinder and a lifting assembly arranged vertically. The lifting assembly is fixed to the pushing end of the third cylinder. The lifting assembly includes a lifting block arranged near the slide and a lifting fork arranged near the punch pushing mechanism. The top of the lifting block has a first groove for lifting the opening plate. The rear sidewall of the opening plate extends downward with a first protrusion that cooperates with the first groove. One end of the lifting fork has an arcuate groove for lifting the opening plate. The bottom of the opening plate has two symmetrical arcuate protrusions. The lifting fork abuts against the two arcuate protrusions on the opening plate at the second position.

3. The automatic opening tray arrangement mechanism according to claim 2, characterized in that: The arc groove is semi-closed, so when the lifting fork abuts against the open plate at the second position, it can restrict the movement of all open plates on the slide along the slide. There is a certain distance between the first protrusion on the open plate at the second position and the first groove on the lifting block. The pushing end of the third cylinder can push the lifting assembly, and then the lifting fork pushes the open plate at the second position, so that the open plate at the second position rotates around its rear fulcrum until the first protrusion abuts against the first groove on the lifting block. When the first protrusion abuts against the first groove, the lifting assembly pushes the open plate to change from rotation to vertical movement. The lifting block is used to restrict the movement of all open plates on the slide along the slide. When there is no open plate at the second position, the open plate at the first position slides to the second position.

4. The automatic opening tray placement mechanism according to claim 3, characterized in that: The opening plate support mechanism includes a certain number of positioning blocks and a certain number of movable stops. The positioning blocks are fixedly connected to the frame and have slots. The slots of the positioning blocks abut against the four corners of the opening plate to limit the position of the opening plate. The movable stops are hinged to the frame and are locked in one direction. The left and right side walls of the opening plate have a certain number of second protrusions extending outward. The movable stops and the second protrusions can abut against each other and be fixed in one direction, and abut against each other and rotate in the other direction, so that the opening plate can pass through and be mounted on the movable stops.

5. The automatic opening tray placement mechanism according to claim 4, characterized in that: The middle of the left and right side walls of the open plate is also provided with a lifting assembly. The lifting assembly includes a connecting seat and a lifting pin. The lifting pin is fixedly connected to the top of the connecting seat. The bottom of the connecting seat is provided with a pin hole that matches the lifting pin. The connecting seat on the open plate in the first state abuts against the slide. The connecting seat on the open plate in the second state is parallel to the horizontal plane. The rear side wall of the open plate is also provided with a lifting groove that matches the first protrusion. The open plate in the second state can be stacked by the cooperation of the lifting pin and the pin hole and / or the cooperation of the first protrusion and the lifting groove.

6. The automatic opening tray arrangement mechanism according to claim 5, characterized in that: The rear sidewall of the open plate is provided with clamping holes for clamping operations and ventilation recesses for balancing the air pressure between stacked open plates.

Images