Automatic picking and positioning device for optical lens mold

Abstract

The invention provides an automatic picking and positioning device for an optical lens mold, and relates to the technical field of mold picking and transferring equipment.The automatic picking and positioning device is characterized in that a limiting plate is welded to the top end of a vertical sliding shaft; the parts, located above the rectangular mounting block, of the two vertical sliding shafts are jointly provided with a longitudinal sliding plate in a sliding mode, the parts, located between the longitudinal sliding plate and the rectangular mounting block, of the two vertical sliding shafts are both sleeved with springs in a compressed mode, and the longitudinal sliding plate abuts against and makes contact with the two limiting plates. A long-strip-shaped rectangular frame is fixedly mounted on one side of the top end part of a clamping motor shell, and two trapezoidal driving frames are symmetrically welded to the bottoms of two long side rods of the long-strip-shaped rectangular frame. And two guide wheels are symmetrically and rotationally arranged at the middle parts of the two long side edges of the longitudinal sliding plate. According to the pick-up positioning device, a driving unit does not need to be additionally arranged for the material pushing plate, an automatic control system does not need to be additionally arranged for the driving unit, the number of the driving units arranged by the pick-up positioning device is reduced, and the manufacturing cost and power consumption of the positioning device are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of mold picking and transferring equipment, and in particular to an automatic picking and positioning device for optical lens molds. Background Art

[0002] During the production process, optical lens molds need to be transferred between various production processes via conveyor belts. When the optical lens molds are transferred between two conveyor belts, an automatic picking and positioning device for the optical lens molds is required.

[0003] When the optical lens mold is conveyed on the roller conveyor belt, the front and rear optical lens molds may be butted against each other. In this case, the front end of the rear optical lens mold and the part that is butted against the front optical lens mold are very likely to be conveyed into the clamping space between the two clamping plates on the picking and positioning device, causing the two clamping plates to clamp the front and rear optical lens molds at the same time when clamping and picking up. However, since only a small part of the front end of the rear optical lens mold is in clamping contact with the two clamping plates, the clamping torque between the two clamping plates is small. Therefore, when the two clamping plates clamp and pick up the front and rear optical lens molds and lift and transfer the two optical lens molds at the same time, the rear optical lens mold is very likely to fall off. Most existing picking and positioning devices lack a mechanism that can separate the front and rear optical lens molds in the above situation, resulting in a high probability of the rear optical lens mold falling during the picking and transfer process. Although some picking and positioning devices are equipped with the above mechanism, these mechanisms require additional drive units, which is not conducive to reducing the overall cost and power consumption of the picking and positioning device. Summary of the Invention

[0004] In view of this, the present invention provides an automatic picking and positioning device for optical lens molds to solve the problem that the existing picking and positioning device lacks a mechanism that can separate the front and rear optical lens molds, resulting in a high probability of the rear optical lens mold falling during the picking and transfer process.

[0005] The technical solution proposed in the present invention is: an automatic picking and positioning device for optical lens molds, which is used to pick up and transfer optical lens molds between two roller conveyor belts arranged side by side and spaced apart. The device specifically includes a hexagonal vertical shaft and a clamping motor. The bottom end of the hexagonal vertical shaft is welded with a longitudinal supporting plate, and the clamping motor is fixedly installed in the middle position of the top end of the longitudinal supporting plate. The top end of the two vertical slide shafts is welded with a spring, and the bottom end of the two vertical slide shafts is welded with a push plate.

[0006] Furthermore, the two guide wheels are in rolling contact with the inclined side rods of the two trapezoidal drive frames; When the push plate is driven to slide downward, it comes into contact with the optical lens mold at its bottom. When the push plate is driven to slide away from the longitudinal supporting plate, it pushes the optical lens mold in contact with it to slide in the same direction.

[0007] Furthermore, the top end of the clamping motor shaft is fixedly connected to a vertical threaded shaft, a horizontal drive plate is threadedly connected to the vertical threaded shaft, and two pull rods are symmetrically connected to the middle part of the horizontal drive plate and the tail end of the vertical hexagonal shaft.

[0008] Furthermore, four L-shaped struts are symmetrically welded on both sides of the middle part of the longitudinal bearing plate, and the bottom ends of the two L-shaped struts on each side are welded with a longitudinal mounting plate. A U-shaped sliding frame is slidingly installed on the two longitudinal mounting plates, and a connecting rod is rotatably connected between the middle part of the two U-shaped sliding frames and the two ends of the transverse driving plate.

[0009] Furthermore, longitudinal splints are welded to the open ends of the two U-shaped sliding frames. The two longitudinal splints are arranged on both sides of the optical lens mold and are used to clamp the optical lens mold. The push plate is close to the top surface of the optical lens mold, and the distance between the longitudinal splint and the optical lens mold is greater than the distance between the push plate and the optical lens mold.

[0010] Furthermore, a rubber friction pad is adhered and fixed to the bottom of the push plate, and the side surface of the rear end of the push plate coincides with the vertical reference plane where the space between the head ends of the two longitudinally arranged clamping plates is located.

[0011] Furthermore, it also includes a T-shaped base, two vertical pillars are symmetrically welded at both ends of the horizontal part of the T-shaped base, two horizontal track shafts are welded between the top parts of the two vertical pillars at intervals, and vertical shaft sleeves are slidably installed on the two horizontal track shafts.

[0012] Furthermore, the hexagonal vertical shaft and the vertical shaft sleeve are slidably fitted through each other.

[0013] Furthermore, an upright bracket is welded to the top of the longitudinal part of the T-shaped base, a transfer motor is fixedly installed in the top space of the upright bracket, a driving rocker arm is fixedly mounted on the rotating shaft of the transfer motor, and the head end of the driving rocker arm is rotatably connected to the top part of the hexagonal upright shaft.

[0014] Furthermore, a control box is fixedly installed on one of the vertical pillars, and a contactor for controlling the start and stop of the roller conveyor belt is provided inside the control box; A photoelectric proximity switch that is screwed and fixed is installed through the tail end of the longitudinal supporting plate; The clamping motor and transfer motor are both servo motors. An automation controller and a servo driver for controlling the clamping motor and transfer motor are also provided inside the control electrical box. The automation controller is electrically connected to the contactor, the servo driver and the photoelectric proximity switch.

[0015] The present invention provides an automatic picking and positioning device for optical lens molds, which has the following beneficial effects: 1. The present invention can prevent the front and rear molds that are butted against each other from being unable to be separated and disengaged, causing the part where the front end of the rear mold is butted against the front mold to be conveyed by the roller conveyor belt between the two longitudinal clamps, so that the front and rear molds are clamped and lifted by the two longitudinal clamps at the same time, preventing only a small part of the front end of the rear mold from being clamped and fixed, resulting in a small clamping torque between the rear mold and the two longitudinal clamps, causing the rear mold to easily fall off during the process of being clamped, picked up and transferred, which helps to improve the stability and effectiveness of the picking and positioning device in clamping and transferring the optical lens mold.

[0016] 2. Through two sets of crank slider mechanisms composed of a longitudinal hexagonal shaft, a transverse drive plate and two pull rods, and the power transmission between two trapezoidal drive frames and two guide wheels, the push plate can use the driving force of the clamping motor to slide downward and away from the longitudinal load plate to automatically press and push the rear mold. This eliminates the need to configure an additional drive unit for the push plate and the need to configure an additional automatic control system for the drive unit, which helps to reduce the number of drive units set for the picking and positioning device and reduce the cost and power consumption of the positioning device.

[0017] 3. The distance between the longitudinal clamping plate and the optical lens mold is greater than the distance between the pusher plate and the optical lens mold. This ensures that in the process of clamping the front mold, the pusher plate is first driven to press into contact with the rear mold. After completing the pushing of the rear mold, the two longitudinal clamping plates are abutted and clamped against the front mold, avoiding the situation where the two longitudinal clamping plates are abutted and clamped against the front and rear molds before the pusher plate pushes the rear mold away from the front mold, thereby hindering the normal and effective pushing of the rear mold by the pusher plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached figure: Figure 1 Shows a schematic diagram of the present invention in use; Figure 2 It shows a bottom side view of the present invention in use; Figure 3 The present invention is shown Figure 1 A schematic diagram of the enlarged structure of part A; Figure 4 The present invention is shown Figure 2 The enlarged structural diagram of part B in the middle; Figure 5 Shows a schematic diagram of the overall structure of the present invention; Figure 6 Shows a schematic diagram of the installation position of the clamping motor and the pusher plate in the present invention; Figure 7 Shows a schematic diagram of the installation position of the photoelectric proximity switch in the present invention; Figure 8 A diagram showing the relative position relationship between the guide wheel and the trapezoidal drive frame in the present invention is shown; Figure 9 A schematic diagram showing the disassembly state of the longitudinal hexagonal shaft and the U-shaped sliding frame in the present invention is shown; Figure 10 Shown is a control flow chart of the present invention.

[0021] List of reference numerals: 1. T-shaped base; 101. Vertical support; 1011. Horizontal track shaft; 102. Vertical bracket; 103. Vertical shaft sleeve; 2. Hexagonal vertical shaft; 201. Vertical bearing plate; 202. L-shaped support rod; 203. Vertical hexagonal shaft; 204. Rectangular mounting block; 205. Pusher plate; 206. Vertical sliding shaft; 2061. Limiting ring; 2062. Limiting plate; 207. Vertical sliding plate; 2071. Guide wheel; 208. Vertical mounting plate; 3. Transfer motor; 301. Drive rocker; 4. Clamping motor; 401. Vertical threaded shaft; 402. Long rectangular frame; 4021. Trapezoidal drive frame; 403. Horizontal drive plate; 404. Connecting rod; 405. Pull rod; 406. U-shaped slide frame; 407. Vertical clamping plate; 5. Control electrical box; 6. Optical lens mold; 7. Roller conveyor belt; 8. Photoelectric proximity switch. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] For the convenience of description, the optical lens mold 6 between the two longitudinal clamps 407 is marked as the front mold, and the optical lens mold 6 below the push plate 205 is marked as the rear mold; the roller conveyor belt 7 close to the control box 5 is marked as the first conveyor belt; the roller conveyor belt 7 away from the control box 5 is marked as the second conveyor belt.

[0024] The following is an embodiment of the present invention, please refer to Figures 1 to 10 : The present invention provides an automatic picking and positioning device for optical lens molds, which is used to pick up and transfer optical lens molds 6 between two roller conveyor belts 7 arranged side by side and spaced apart. The device includes a hexagonal vertical shaft 2 and a clamping motor 4. A longitudinal support plate 201 is welded to the bottom end of the hexagonal vertical shaft 2, and the clamping motor 4 is fixedly installed at the middle position of the top end of the longitudinal support plate 201. A longitudinal hexagonal shaft 203 (such as Figure 4 As shown in FIG), the head end of the longitudinal hexagonal shaft 203 is welded with a rectangular mounting block 204, and two vertical sliding shafts 206 are symmetrically slidably installed on the rectangular mounting block 204. The bottom ends of the two vertical sliding shafts 206 are welded with a push plate 205; a limit ring 2061 is welded on the lower half of the vertical sliding shaft 206 (as shown in FIG). Figure 8As shown in the figure, the limiting ring 2061 is in contact with the bottom surface of the rectangular mounting block 204, and the top of the vertical sliding shaft 206 is welded with a limiting plate 2062; the parts of the two vertical sliding shafts 206 located above the rectangular mounting block 204 are jointly slidably installed with a longitudinal slide 207, and the parts of the two vertical sliding shafts 206 located between the longitudinal slide 207 and the rectangular mounting block 204 are compressed with springs, and the longitudinal slide 207 is in contact with the two limiting plates 2062; a long rectangular frame 402 is fixedly installed on one side of the top part of the clamping motor 4 housing, and two trapezoidal driving frames 4021 are symmetrically welded to the bottom of the two long side rods of the long rectangular frame 402; two guide wheels 2071 are symmetrically rotated in the middle part of the two long sides of the longitudinal slide 207.

[0025] Preferably, the two guide wheels 2071 are in rolling contact with the inclined side rods of the two trapezoidal drive frames 4021 .

[0026] Preferably, the top end of the rotating shaft of the clamping motor 4 is fixedly connected with a vertical threaded shaft 401, and a horizontal driving plate 403 is threadedly connected to the vertical threaded shaft 401. Two pull rods 405 are symmetrically connected to the middle part of the horizontal driving plate 403 and the tail end of the vertical hexagonal shaft 203 for rotation.

[0027] Preferably, four L-shaped support rods 202 are symmetrically welded on both sides of the middle part of the longitudinal supporting plate 201, and the bottom ends of the two L-shaped support rods 202 on each side are welded with a longitudinal mounting plate 208. A U-shaped sliding frame 406 is slidingly installed on the two longitudinal mounting plates 208, and a connecting rod 404 is rotatably connected between the middle part of the two U-shaped sliding frames 406 and the two ends of the horizontal driving plate 403.

[0028] Preferably, the open ends of the two U-shaped sliding frames 406 are welded with longitudinal clamps 407, and the two longitudinal clamps 407 are arranged on both sides of the optical lens mold 6 for clamping the optical lens mold 6. The push plate 205 is close to the top surface of the optical lens mold 6, and the distance between the longitudinal clamps 407 and the optical lens mold 6 is greater than the distance between the push plate 205 and the optical lens mold 6.

[0029] Preferably, a rubber friction pad is adhered and fixed to the bottom of the push plate 205 , and the side surface of the rear end of the push plate 205 coincides with the vertical reference plane where the space between the head ends of the two longitudinal clamping plates 407 is located.

[0030] Preferably, it also includes a T-shaped base 1, two vertical pillars 101 are symmetrically welded at both ends of the horizontal part of the T-shaped base 1, two horizontal track shafts 1011 are welded between the top parts of the two vertical pillars 101 at upper and lower intervals, and vertical shaft sleeves 103 are slidably installed on the two horizontal track shafts 1011.

[0031] Preferably, the hexagonal vertical shaft 2 and the vertical shaft sleeve 103 are slidably fitted through them.

[0032] Preferably, an upright bracket 102 is welded to the top of the longitudinal part of the T-shaped base 1, and a transfer motor 3 is fixedly installed in the top space of the upright bracket 102. A driving rocker arm 301 is fixedly mounted on the rotating shaft of the transfer motor 3, and the head end of the driving rocker arm 301 is rotatably connected to the top part of the hexagonal upright shaft 2.

[0033] Preferably, a control electrical box 5 is fixedly installed on a vertical pillar 101, and a contactor for controlling the start and stop of the roller conveyor belt 7 is provided inside the control electrical box 5; a photoelectric proximity switch 8 that is screwed and fixed is installed through the tail end of the longitudinal carrier plate 201; the clamping motor 4 and the transfer motor 3 are both servo motors, and an automation controller and a servo driver for controlling the clamping motor 4 and the transfer motor 3 are also provided inside the control electrical box 5, wherein the automation controller is electrically connected to the contactor, the servo driver and the photoelectric proximity switch 8; the automation controller can be a PLC controller or a single-chip microcomputer.

[0034] The following is a detailed description of the specific details, implementation steps, functions and interrelationships of the above features, as well as their roles in implementing the present invention: The horizontal drive plate 403, two U-shaped sliding frames 406, two longitudinal clamping plates 407, two connecting rods 404 and the common connection constitute two sets of crank slider mechanisms. Through the two sets of crank slider mechanisms, the horizontal drive plate 403 can be slid up and down to drive the two U-shaped sliding frames 406 and the two longitudinal clamping plates 407 to slide toward each other to loosen or tighten the optical lens mold 6; through the vertical threaded shaft 401, the clamping motor 4 can rotate forward and reverse to drive the horizontal drive plate 403 to slide up and down.

[0035] When the transfer motor 3 drives the driving rocker arm 301 to swing toward the side away from the control box 5, it can drive the hexagonal vertical shaft 2 and the vertical shaft sleeve 103 to slide along the two horizontal track shafts 1011 away from the control box 5, and at the same time drive the hexagonal vertical shaft 2 to slide upward, lift the optical lens mold 6 clamped between the two longitudinal clamps 407 and transfer it from the first conveyor belt to the second conveyor belt. In this process, when the driving rocker arm 301 swings and deviates from the upright state to one side of the second conveyor belt, it continues to push the hexagonal vertical shaft 2 and the vertical shaft sleeve 103 to slide away from the control box 5, and at the same time drive the hexagonal vertical shaft 2 to slide downward, transfer the optical lens mold 6 to the second conveyor belt, and complete the transfer of the optical lens mold 6 between the two roller conveyor belts 7.

[0036] The horizontal driving plate 403, the vertical hexagonal shaft 203 and the two pull rods 405 are connected together to form two sets of crank slider mechanisms. Through the two sets of crank slider mechanisms, when the horizontal driving plate 403 is driven up and down, the vertical hexagonal shaft 203 and the rectangular mounting block 204 can be driven to slide back and forth along the vertical supporting plate 201; when the horizontal driving plate 403 slides upward, the two vertical clamping plates 407 are driven to clamp the front mold and control the rectangular mounting block 204 to slide away from the vertical supporting plate 201. The rectangular mounting block 204 can drive the vertical slide plate 207, the push plate 205 and the two vertical sliding shafts 206 to slide in the same direction. When 207 and the two guide wheels 2071 thereon are driven to slide away from the longitudinal supporting plate 201, the two trapezoidal driving frames 4021 can push the two guide wheels 2071 and the longitudinal slide plate 207 downward through the guiding effect of their inclined side rods. When the longitudinal slide plate 207 is driven to slide down, it can compress the springs on the two vertical sliding shafts 206 and push the push plate 205 downward through the two springs. When the push plate 205 is pushed downward and contacts the top pressure of the rear mold, as the rectangular mounting block 204 continues to slide, the push plate 205 can push the rear mold through the extrusion friction generated between the rubber friction pad at its bottom and the rear mold. The front and rear molds are then moved away from the longitudinal support plate 201, and the rear mold is controlled to separate from the front mold and escape from the clamping space between the two longitudinal clamping plates 407. This can prevent the front and rear molds that are butted together from being unable to be separated and disengaged, causing the part of the front end of the rear mold that is butted against the front mold to be transported by the roller conveyor belt 7 to between the two longitudinal clamping plates 407, causing the front and rear molds to be clamped and lifted by the two longitudinal clamping plates 407 at the same time, preventing only a small part of the front end of the rear mold from being clamped and fixed, resulting in a small clamping torque between the rear mold and the two longitudinal clamping plates 407, causing the rear mold to easily fall off during the process of being clamped, picked up and transferred. This helps to improve the stability and effectiveness of the picking and positioning device in clamping and transferring the optical lens mold 6; when the horizontal driving plate 403 slides downward, driving the two vertical clamping plates 407 to loosen and unload the front mold, and controlling the rectangular mounting block 204 to slide toward the vertical carrying plate 201, the rectangular mounting block 204 can drive the two vertical sliding shafts 206, the vertical slide plate 207 and the push plate 205 to slide back and reset. During this process, the two guide wheels 2071 are separated from the two trapezoidal driving frames 4021 and restored to the initial state of abutting and contacting with the inclined side rods of the two trapezoidal driving frames 4021. When the two guide wheels 2071 are reset to the initial state (refer to Figure 3 、 Figure 6 and Figure 8), the springs on the two vertical slides 206 lose the pushing and holding force from the two trapezoidal drive frames 4021, and can automatically push the two vertical slides 206, the longitudinal slide 207 and the push plate 205 to slide back to their original position, preparing for the subsequent pushing and separation of the rear mold and the front mold; in the above process, when the two guide wheels 2071 roll over the inclined side rods of the two trapezoidal drive frames 4021 and rest against the bottom side of the longitudinal bottom rods of the two trapezoidal drive frames 4021, the two longitudinal bottom rods can push and hold the two guide wheels 2071 and the longitudinal slide 207 in a downward pressing state, and position the push plate 205 to remain in a pressed contact state with the rear mold, ensuring that the push plate 205 can continuously and effectively push and shift the rear mold.

[0037] Through the two sets of crank slider mechanisms composed of the longitudinal hexagonal shaft 203, the transverse drive plate 403 and the two pull rods 405, and the power transmission between the two trapezoidal drive frames 4021 and the two guide wheels 2071, the push plate 205 can use the driving force of the clamping motor 4 to slide downward and away from the longitudinal supporting plate 201 to automatically press and push the rear mold. This eliminates the need to additionally configure a drive unit for the push plate 205 and the need to additionally configure an automatic control system for the drive unit, which helps to reduce the number of drive units set for the picking and positioning device and reduce the cost and power consumption of the positioning device.

[0038] The setting of the distance between the longitudinal clamping plate 407 and the optical lens mold 6 is greater than the distance between the push plate 205 and the optical lens mold 6, which can ensure that in the process of clamping the front mold, the push plate 205 is first driven to press into contact with the rear mold. After completing the pushing of the rear mold, the two longitudinal clamping plates 407 are abutted and clamped against the front mold, avoiding the situation where the two longitudinal clamping plates 407 are first abutted and clamped against the front and rear molds before the push plate 205 pushes the rear mold away from the front mold, thereby hindering the normal and effective pushing of the rear mold by the push plate 205.

[0039] The working principle of this embodiment is as follows: during use, when the optical lens mold 6 on the first conveyor belt is conveyed through the clamping space between the two longitudinal clamps 407 and the optical lens mold 6, the optical lens mold 6 approaches the trigger photoelectric proximity switch 8. When the photoelectric proximity switch 8 is triggered, it transmits the trigger signal to the automation controller. When the automation controller receives the trigger signal, it determines that the optical lens mold 6 is conveyed through the clamping space between the two longitudinal clamps 407, and then shuts down the motor of the first conveyor belt through the contactor, controls the first conveyor belt to stop, and simultaneously starts the control of the clamping motor 4 to reverse through the servo driver of the clamping motor 4. When the clamping motor 4 reverses, it can drive the horizontal drive plate 403 through the vertical threaded shaft 401. Slide upward, and control the two longitudinal clamps 407 to slide close to each other to clamp the optical lens mold 6. When the clamping motor 4 accurately reverses the specified number of turns to clamp the optical lens mold 6, its servo driver transmits the clamping signal triggered by its precise reverse number of turns to the automation controller. When the automation controller receives the clamping signal, it turns off the clamping motor 4 through the servo driver of the clamping motor 4, keeps the two longitudinal clamps 407 in a clamped state, and starts the transfer motor 3 and controls the transfer motor 3 to drive the driving rocker arm 301 to swing toward the side away from the control box 5. When the driving rocker arm 301 swings toward this side, it can drive the hexagonal vertical shaft 2 and the vertical shaft sleeve 103 to slide along the two horizontal track shafts 1011 away from the control box 5, and At the same time, the hexagonal vertical shaft 2 is driven to slide upward, and the optical lens mold 6 clamped between the two longitudinal clamps 407 is lifted up and transferred from the first conveyor belt to the second conveyor belt. When the transfer motor 3 drives the driving rocker 301 to swing to a predetermined angle and places the optical lens mold 6 on the second conveyor belt, its servo driver transmits the in-place placement signal triggered by its precise swing angle to the automation controller. After receiving the in-place placement signal, the automation controller turns off the transfer motor 3 through the servo driver of the transfer motor 3, and at the same time starts the control of the clamping motor 4 to rotate forward through the servo driver of the clamping motor 4. When the clamping motor 4 rotates forward, it can push the vertical threaded shaft 401 to drive the horizontal driving plate 403 to slide downward and control the two longitudinal clamps. 407 slide away from each other, loosening the optical lens mold 6 and unloading it onto the second conveyor belt. When the clamping motor 4 rotates forward for a specified number of times and loosens the optical lens mold 6, its servo driver transmits a loosening signal triggered by its precise number of forward rotations to the automation controller. After receiving the loosening signal, the automation controller turns off the clamping motor 4 through the servo driver of the clamping motor 4, and starts to control the transfer motor 3 to rotate through the servo driver of the transfer motor 3. When the transfer motor 3 rotates, it can drive the hexagonal vertical axis 2 and the two longitudinal clamps 407 in the loose state to slide back and reset along the two horizontal track axes 1011 by driving the rocker 301, and at the same time control the hexagonal vertical axis 2 and the two longitudinal clamps 407 in the loose state to slide down.The two longitudinal clamps 407 in the loose state are reset to a state close to the first conveyor belt (refer to, Figure 1 、 Figure 2 and Figure 6 ), so as to clamp, pick up and transfer the optical lens mold 6 again, and when the transfer motor 3 drives the driving rocker 301 to swing back to the predetermined angle accurately, and resets the two longitudinal clamps 407 in the loose state close to the first conveyor, its servo driver transmits the reset signal generated by its precise rotation of the predetermined angle to the automation controller. When the automation controller receives the signal, it restarts the first conveyor belt through the contactor and controls the first conveyor belt to continue to transport the optical lens mold 6. At this point, one picking and transfer operation is completed, and the above process can be repeated in an intermittent manner to continue to pick up and transfer the optical lens mold 6 between the two roller conveyor belts 7.

[0040] It is worth noting that the setting position, wiring method and program entered into the automation controller of the automation controller, contactor, servo drive and photoelectric proximity switch 8 are prior arts for personnel in this field who are engaged in the installation, design, debugging, maintenance and technical transformation of equipment automation systems. There are also mature corresponding solutions on the market. Manufacturers can use them after simple debugging after purchase, so they will not be elaborated here.

[0041] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0042] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0043] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An automatic picking and positioning device for optical lens molds, used for picking up and transferring optical lens molds (6) between two roller conveyor belts (7) spaced apart and arranged side by side, comprising a hexagonal vertical shaft (2) and a clamping motor (4), wherein a longitudinal supporting plate (201) is welded to the bottom end of the hexagonal vertical shaft (2), and the clamping motor (4) is fixedly mounted at the middle position of the top end of the longitudinal supporting plate (201); It is characterized in that A longitudinal hexagonal shaft (203) is slidably mounted on the hexagonal vertical shaft (2), a rectangular mounting block (204) is welded to the head end of the longitudinal hexagonal shaft (203), two vertical sliding shafts (206) are symmetrically slidably mounted on the rectangular mounting block (204), and a push plate (205) is welded to the bottom ends of the two vertical sliding shafts (206); a limiting ring (2061) is welded on the lower half of the vertical sliding shaft (206), the limiting ring (2061) is in contact with the bottom surface of the rectangular mounting block (204), and a limiting plate (2062) is welded to the top end of the vertical sliding shaft (206); the upper positions of the two vertical sliding shafts (206) are A longitudinal slide plate (207) is slidably mounted on the portion above the rectangular mounting block (204); portions of the two vertical sliding shafts (206) between the longitudinal slide plate (207) and the rectangular mounting block (204) are compressed with springs, and the longitudinal slide plate (207) is in contact with two limit plates (2062); a long rectangular frame (402) is fixedly mounted on one side of the top portion of the housing of the clamping motor (4); two trapezoidal drive frames (4021) are symmetrically welded to the bottoms of the two long side rods of the long rectangular frame (402); and two guide wheels (2071) are symmetrically rotated in the middle portions of the two long sides of the longitudinal slide plate (207).

2. The automatic picking and positioning device for optical lens molds according to claim 1, characterized in that: The two guide wheels (2071) are in rolling contact with the inclined side rods of the two trapezoidal drive frames (4021); When the push plate (205) is driven to slide downward, it comes into contact with the optical lens mold (6) at its bottom. When the push plate (205) is driven to slide away from the longitudinal supporting plate (201), it pushes the optical lens mold (6) in contact with it to slide in the same direction.

3. The automatic picking and positioning device for optical lens molds according to claim 1, characterized in that: The top end of the rotating shaft of the clamping motor (4) is fixedly connected to a vertical threaded shaft (401), a horizontal driving plate (403) is threadedly connected to the vertical threaded shaft (401), and two pull rods (405) are symmetrically connected to the middle part of the horizontal driving plate (403) and the tail end of the vertical hexagonal shaft (203) for rotation.

4. The automatic picking and positioning device for optical lens molds according to claim 3, characterized in that: Four L-shaped support rods (202) are symmetrically welded on both sides of the middle portion of the longitudinal bearing plate (201), and the bottom ends of the two L-shaped support rods (202) on each side are welded with a longitudinal mounting plate (208) in common. U-shaped sliding frames (406) are slidably mounted on the two longitudinal mounting plates (208), and connecting rods (404) are rotatably connected between the middle portions of the two U-shaped sliding frames (406) and the two ends of the transverse driving plate (403).

5. The automatic picking and positioning device for optical lens molds according to claim 4, characterized in that: The open ends of the two U-shaped sliding frames (406) are welded with longitudinal clamping plates (407). The two longitudinal clamping plates (407) are arranged on both sides of the optical lens mold (6) and are used to clamp the optical lens mold (6). The push plate (205) is close to the top surface of the optical lens mold (6). The distance between the longitudinal clamping plates (407) and the optical lens mold (6) is greater than the distance between the push plate (205) and the optical lens mold (6).

6. The automatic picking and positioning device for optical lens molds according to claim 5, characterized in that: A rubber friction pad is glued and fixed to the bottom of the push plate (205), and the side surface of the rear end of the push plate (205) coincides with the vertical reference plane where the space between the head ends of the two longitudinally arranged clamping plates (407) is located.

7. The automatic picking and positioning device for optical lens molds according to claim 1, characterized in that: It also includes a T-shaped base (1), two vertical pillars (101) are symmetrically welded at both ends of the transverse portion of the T-shaped base (1), two transverse track shafts (1011) are welded at intervals between the top ends of the two vertical pillars (101), and vertical shaft sleeves (103) are slidably mounted on the two transverse track shafts (1011); The hexagonal vertical shaft (2) and the vertical shaft sleeve (103) are in sliding engagement with each other.

8. The automatic picking and positioning device for optical lens molds according to claim 7, characterized in that: A vertical bracket (102) is welded to the top of the vertical portion of the T-shaped base (1), a transfer motor (3) is fixedly installed in the space at the top of the vertical bracket (102), a driving rocker (301) is fixedly sleeved on the rotating shaft of the transfer motor (3), and the head end of the driving rocker (301) is rotatably connected to the top portion of the hexagonal vertical shaft (2).

9. The automatic picking and positioning device for optical lens molds according to claim 7, characterized in that: A control electric box (5) is fixedly mounted on one of the vertical pillars (101), and a contactor for controlling the start and stop of the roller conveyor belt (7) is provided inside the control electric box (5); A photoelectric proximity switch (8) is installed through the tail end of the longitudinal supporting plate (201) and is screwed and fixed thereto; The clamping motor (4) and the transfer motor (3) are both servo motors. An automation controller and a servo driver for controlling the clamping motor (4) and the transfer motor (3) are also provided inside the control electrical box (5), wherein the automation controller is electrically connected to the contactor, the servo driver and the photoelectric proximity switch (8).

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