A contact lens mold tray positioning mechanism

Abstract

The utility model discloses a contact lens mold tray mechanism, include: frame, rotating component, including setting on the frame and axial horizontal pivot and drive the rotation of the pivot rotation drive part, telescopic drive part, a plurality of snatchers, moving component. When snatchers are upward, contact lens mold is located the snatchers directly above, and the telescopic drive part drives snatchers and goes up to the automatic snatch of contact lens mold, and snatch is completed after through rotating component and drives the rotation of snatcher to be downward directly for the tray hole of packing tray, then through telescopic drive part and drive snatcher and go down and insert contact lens mold into the tray hole, finally snatcher loosens, and telescopic drive part retracts, and rotating component returns to the zero position after rotating, and the realization of the tray operation of contact lens mold is automatic and accurate, improves the tray efficiency, and bearing seat drives packing tray movement, and moves the tray hole of next empty space to the snatchers directly below.

Description

Technical Field

[0001] This utility model relates to the field of tray arrangement technology, and more specifically, to a tray arrangement mechanism for contact lens molds. Background Technology

[0002] Contact lens molds are tools used to manufacture contact lenses. After the contact lenses are made, the contact lens molds need to be arranged on a tray.

[0003] Existing technologies include a conveying mechanism and a receiving and positioning mechanism. The conveying mechanism is used to transport contact lens molds, and the receiving mechanism is used to receive and position the contact lens molds from the conveying mechanism. How to grip and arrange the contact lens molds on the positioning mechanism is a challenge. Therefore, we propose a contact lens mold arranging mechanism. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a tray-setting mechanism that can automatically grasp and automatically set up a positioned contact lens mold.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A contact lens mold tray mechanism, comprising:

[0007] frame;

[0008] The rotating assembly includes a rotating shaft mounted on the frame and horizontally aligned thereon, and a rotary drive that drives the rotating shaft to rotate.

[0009] A telescopic drive component is mounted on the rotating shaft, and the output end of the telescopic drive component is perpendicular to the axis of the rotating shaft. The output end of the telescopic drive component is provided with a mounting plate.

[0010] Several gripping components are spaced apart on the mounting plate for gripping the contact lens mold;

[0011] A movable component, disposed below the pivot, has a movable support for placing packaging trays;

[0012] The packaging tray has several rows of tray holes, and the gripping components correspond one-to-one with each of the tray holes in each row.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] When the gripper is facing upwards, the contact lens mold is located directly above it. The telescopic drive moves the gripper upwards to automatically grip the contact lens mold. After gripping, the rotating component rotates the gripper downwards to face the placement hole of the packaging tray. Then, the telescopic drive moves the gripper downwards to insert the contact lens mold into the placement hole. Finally, the gripper releases, the telescopic drive retracts, and the rotating component rotates to complete the reset. This automatic and precise placement operation of the contact lens mold improves placement efficiency. The carrier moves the packaging tray, moving the next row of empty placement holes directly below the gripper, thus filling all the placement holes on the packaging tray.

[0015] Preferably, the frame includes a base and two spaced-apart support seats disposed on the base; the rotating shaft is disposed between the two support seats, and the moving component is disposed on the base.

[0016] Preferably, the gripping component includes an air tube disposed on the mounting plate and a suction nozzle disposed on the air tube away from the mounting plate; the suction nozzle is inserted into the contact lens mold to hold it in place; the suction nozzle corresponds one-to-one with the slot plate hole.

[0017] Preferably, the moving component further includes a power transmission element disposed on the base, and the support is disposed on the output end of the power transmission element.

[0018] Preferably, the tray arrangement mechanism further includes a feeding component disposed on the base and located on one side of the support seat; the feeding component has a feeding part movably disposed above the packaging tray, and the feeding part has a plurality of clamping grooves on the side near the packaging tray that correspond one-to-one with the gripping part, the width of the clamping grooves being greater than the outer diameter of the suction nozzle and smaller than the outer diameter of the contact lens mold.

[0019] Preferably, the feeding assembly further includes:

[0020] A raised seat is provided on the base and located on one side of the support seat;

[0021] The slider is slidably disposed on the lifting seat in the direction of the bearing seat; the unloading component is disposed on the side of the slider near the bearing seat;

[0022] A feeding drive is mounted on the lifting seat, and the output end of the feeding drive is connected to the slider to drive the slider to move.

[0023] Preferably, the clamping groove includes an opening facing the packaging tray, the opening extending inward to form an engaging portion, the width of the opening being greater than the width of the engaging portion, and the transition between the opening and the engaging portion being provided with a rounded corner or a chamfer. The width of the engaging portion is greater than the outer diameter of the suction nozzle and smaller than the outer diameter of the contact lens mold.

[0024] Preferably, the top of the tray-stacking mechanism is provided with a material receiving and positioning mechanism, the material receiving and positioning mechanism comprising:

[0025] A base is disposed on the frame and located above the gripper;

[0026] The receiving and positioning component is horizontally movably mounted on the base and has a plurality of slots that are horizontally spaced along the moving direction of the receiving and positioning component and have outward openings. The slots are used to engage the contact lens mold. The plurality of slots correspond one-to-one with the plurality of gripping components.

[0027] A drive component is disposed on the base, and the power output end of the drive component is connected to the material receiving and positioning component, which is used to drive the material receiving and positioning component to move horizontally.

[0028] The limiting assembly has a limiting plate that can be raised and lowered on the opposite side of the slot, the limiting plate being used to press and position the contact lens mold in the slot. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a side view of the present invention;

[0031] Figure 3 This is a schematic diagram of the gripper of the present invention holding the contact lens mold in place.

[0032] Figure 4 This is a schematic diagram of the gripper of this utility model in a rotated downward state;

[0033] Figure 5 This is a schematic diagram of the gripping component and clamping groove of this utility model.

[0034] Figure 6 This is a schematic diagram of the clamping groove structure of this utility model;

[0035] Figure 7 This is a schematic diagram showing the cooperation between the present invention and the material receiving and positioning mechanism;

[0036] Figure 8 This is a schematic diagram of the present invention and the material receiving and positioning mechanism from another angle.

[0037] Explanation of the labels in the diagram:

[0038] 1. Frame; 11. Support component; 12. Base; 2. Rotating assembly; 21. Rotating shaft; 22. Rotation drive component; 3. Telescopic drive component; 31. Mounting plate; 4. Gripping component; 41. Air pipe; 42. Suction nozzle; 5. Moving assembly; 51. Power transmission component; 52. Bearing seat; 6. Packaging tray; 61. Display tray hole; 7. Unloading assembly; 71. Unloading component; 711. Clamping groove; 72. Lifting seat; 73. Slider; 74. Unloading drive component; 8. Contact lens mold; 9. Receiving and positioning mechanism; 91. Base; 92. Drive assembly; 93. Receiving and positioning assembly; 931. Slot; 94. Limiting assembly; 941. Limiting plate. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] refer to Figure 1-2 A contact lens mold tray mechanism includes: a frame 1, a rotating assembly 2, a telescopic drive 3, several gripping members 4, and a moving assembly. The rotating assembly 2 includes a horizontally axially mounted rotating shaft 21 on the frame 1 and a rotary drive 22 that drives the rotating shaft 21 to rotate; the telescopic drive 3 is mounted on the rotating shaft 21, and its output end is perpendicular to the axis of the rotating shaft 21, with a mounting plate 31 at the output end; several gripping members 4 are spaced apart on the mounting plate 31 for gripping contact lens molds 8; the moving assembly 5 is located below the rotating shaft 21 and has a movable support 52 for placing a packaging tray 6; wherein the packaging tray 6 has several rows of tray holes 61, and the gripping members 4 correspond one-to-one with each row of tray holes 61.

[0041] Understandably, the frame 1 is the base component supporting and mounting the entire mechanism. The rotary drive 22 can use a stepper motor or servo motor, etc., to precisely control the direction and rotation angle of the rotating shaft 21. The telescopic drive 3 is the component that drives the gripper 4 to move up and down, for example, it can use a cylinder or electric push rod, but is not limited to these. The gripper 4 is the component that grips the contact lens mold 8, for example, it can use a gripping structure or a suction tube structure, but is not limited to these. The moving component can be a combination structure of a conveyor belt or a screw drive, etc., with a carrier plate, but is not limited to these.

[0042] For reference, please refer to this setting. Figure 1-2When the gripper 4 is facing upwards, the contact lens mold 8 is located directly above the gripper 4. (Reference) Figure 3 The telescopic drive component 3 moves the gripper 4 upwards to automatically grip the contact lens mold 8. (Reference) Figure 4-5 After the gripping is completed, the rotating component 2 drives the gripper 4 to rotate downwards and face the tray hole 61 of the packaging tray 6. Then, the telescopic drive component 3 drives the gripper 4 to move down and insert the contact lens mold 8 into the tray hole 61. Finally, the gripper 4 is released, the telescopic drive component 3 retracts, and the rotating component 2 rotates to complete the reset. The tray placement operation of the contact lens mold 8 is realized automatically and accurately, improving the tray placement efficiency. The carrier 52 drives the packaging tray 6 to move the next row of empty tray holes 61 to directly below the gripper 4, so that all the tray holes 61 on the packaging tray 6 can be filled.

[0043] In some embodiments, reference Figure 1 The frame 1 includes a base 12 and two spaced-apart support seats disposed on the base 12; a rotating shaft 21 is disposed between the two support seats, and a moving component is disposed on the base 12. Here, the support seats are components used for mounting and raising both ends of the rotating shaft 21, and can be, for example, a vertical plate structure or a vertical pole structure, but are not limited thereto. The base 12 can be a plate structure or a workbench structure, but is not limited thereto. The support seats on the base 12 provide stability. The two ends of the rotating shaft 21 are disposed on the support seats to stabilize the rotating shaft 21.

[0044] In some embodiments, reference Figure 2 and Figure 5 The gripping component 4 includes an air tube 41 mounted on the mounting plate 31 and a suction nozzle 42 mounted on the air tube 41 away from the mounting plate 31. The suction nozzle 42 is inserted into the contact lens mold 8 to hold it in place. The suction nozzle 42 corresponds one-to-one with the swing plate hole 61. It is understood that both the air tube 41 and the suction nozzle 42 are tubular structures, and the air tube 41 is connected to a vacuum generator or vacuum pump, etc. The contact lens mold 8 is a perforated mold structure, and the suction nozzle 42 can be embedded into the hole to hold the entire contact lens mold 8 in place. This gripping method minimizes damage to the contact lens mold 8.

[0045] In some embodiments, reference Figure 1The moving component also includes a power transmission element 51 mounted on the base 12, with a support seat 52 mounted on the output end of the power transmission element 51. It is understood that the power transmission element 51 can be a conveyor belt, with the support seat 52 directly mounted on it; or it can be a threaded screw drive structure, with the support seat 52 mounted on its output end, etc., but is not limited to these. The support seat 52 can be a single plate structure, or a plate structure combined with a fixing structure for positioning the packaging tray 6, etc., but is not limited to these. The fixing structure can be a positioning groove on the support seat 52, or a screw used to press and fix the packaging tray 6, etc. With this configuration, when the next row of empty tray holes 61 needs to be moved below the gripper 4, the power transmission element 51 drives the support seat 52, thereby moving the packaging tray 6.

[0046] In some embodiments, reference Figure 4 , Figure 5 as well as Figure 8 The tray arrangement mechanism also includes a feeding component 7 disposed on the base 12 and located on one side of the support seat 52; the feeding component 7 has a feeding part 71 movably disposed above the packaging tray 6, and the feeding part 71 has a plurality of clamping grooves 711 corresponding one-to-one with the gripping part 4 on the side near the packaging tray 6, the width of the clamping grooves 711 being greater than the outer diameter of the suction nozzle 42 and smaller than the outer diameter of the contact lens mold 8.

[0047] Understandably, the blanking component 71 can be a sheet metal structure, and the clamping groove 711 is a through groove structure with one end open. The clamping groove 711 can be a long groove structure, a semi-circular groove structure, etc., but is not limited to these. The movable setting of the blanking component 71 can be used to slide with a slide rail, or it can be directly connected to a drive component to automatically push the blanking component 71.

[0048] With this configuration, when the gripper 4 rotates to face downwards, the unloading component 71 moves towards the gripper 4, causing the suction nozzle 42 on the gripper 4 to engage in the clamping groove 711. At this time, the telescopic drive component 3 drives the gripper 4 to move upwards and retract. Since the outer diameter of the contact lens mold 8 is larger than the width of the clamping groove 711, the unloading component 71 will limit the contact lens mold 8, thereby causing the suction nozzle 42 to disengage from the contact lens mold 8.

[0049] In some embodiments, the unloading assembly 7 further includes: a lifting seat 72, a slider 73, and an unloading drive 74. The lifting seat 72 is disposed on the base 12 and located on one side of the support seat 52; the slider 73 is slidably disposed on the lifting seat 72 toward the support seat 52; the unloading component 71 is disposed on the side of the slider 73 near the support seat 52; the unloading drive 74 is disposed on the lifting seat 72, and the output end of the unloading drive 74 is connected to the slider 73 for driving the slider 73 to move.

[0050] Understandably, since there is a certain height difference between the base 12 and the support seat 52, the lifting seat 72 serves to lift the unloading component 71. This can be achieved through a combination of a vertical rod and a plate, or as a single block structure. The sliding mechanism of the slider 73 can be a slide rail on the lifting seat 72 that slides with the slider 73, or a guide shaft that mates with the shaft hole of the slider 73. The unloading drive component 74 can be a cylinder or an electric push rod, but is not limited to these.

[0051] With this configuration, when the unloading component 71 needs to be driven, the unloading drive component 74 drives the slider 73 to move, thereby automatically moving the unloading component 71 towards the packaging tray 6. The sliding engagement of the slider 73 can improve the stability of the movement of the unloading component 71.

[0052] In some embodiments, reference Figure 1 and Figure 6 The clamping groove 711 includes an opening facing the packaging tray 6, with an inwardly extending engagement portion. The width of the opening is greater than the width of the engagement portion, and the transition between the opening and the engagement portion is provided with rounded or beveled corners. The width of the engagement portion is greater than the outer diameter of the suction nozzle 42 but smaller than the outer diameter of the contact lens mold 8. This wider opening allows the suction nozzle 42 to enter more easily, acting as a guide for engaging the suction nozzle 42 into the engagement portion. This prevents the suction nozzle 42 from failing to engage in the engagement portion due to slight positional deviations.

[0053] In some embodiments, reference Figure 7-8 The top of the tray-mounting mechanism is equipped with a receiving and positioning mechanism 9, which includes a base 91, a receiving and positioning component 93, a drive component 92, and a limiting component 94. The base 91 is mounted on the frame 1 and located above the gripper 4. The receiving and positioning component 93 is horizontally movably mounted on the base 91 and has several slots 931 that are horizontally spaced along the moving direction of the receiving and positioning component 93 and have outward-facing openings. These slots 931 are used to engage the contact lens mold 8. Each slot 931 corresponds one-to-one with a gripper 4. The drive component 92 is mounted on the base 91, and its power output end is connected to the receiving and positioning component 93 to drive the receiving and positioning component 93 to move horizontally. The limiting component 94 has a limiting plate 941 that is vertically adjustable and mounted on the opposite side of the slots 931. The limiting plate 941 is used to press and position the contact lens mold 8 within the slots 931.

[0054] Thus, when each slot 931 has received the contact lens mold 8, the drive assembly 92 moves the receiving and positioning assembly 93, positioning the contact lens mold 8 directly above the gripper 4. At this point, the telescopic drive assembly 3 moves the gripper 4 upward to grip the contact lens mold 8, and then the limiting plate 941 moves upward to finish pressing the contact lens mold 8. Then, by rotating the main assembly, the gripper 4 rotates downward to perform a tray-mounting operation on the contact lens mold 8.

[0055] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A contact lens mold tray arrangement mechanism, characterized in that, include: frame; The rotating assembly includes a rotating shaft mounted on the frame and horizontally aligned thereon, and a rotary drive that drives the rotating shaft to rotate. A telescopic drive component is mounted on the rotating shaft, and the output end of the telescopic drive component is perpendicular to the axis of the rotating shaft. The output end of the telescopic drive component is provided with a mounting plate. Several gripping components are spaced apart on the mounting plate for gripping the contact lens mold; A movable component, disposed below the pivot, has a movable support for placing packaging trays; The packaging tray has several rows of tray holes, and the gripping components correspond one-to-one with each of the tray holes in each row.

2. The contact lens mold tray mechanism according to claim 1, characterized in that, The frame includes a base and two spaced-apart support seats disposed on the base; the rotating shaft is disposed between the two support seats, and the moving component is disposed on the base.

3. The contact lens mold placement mechanism according to claim 2, characterized in that, The gripping component includes an air tube disposed on the mounting plate and a suction nozzle disposed on the air tube away from the mounting plate; the suction nozzle is inserted into the contact lens mold to hold it in place; the suction nozzle corresponds one-to-one with the slot plate hole.

4. The contact lens mold placement mechanism according to claim 2, characterized in that, The moving component also includes a power transmission element disposed on the base, and the support is disposed on the output end of the power transmission element.

5. The contact lens mold placement mechanism according to claim 3, characterized in that, The tray-setting mechanism also includes a feeding assembly disposed on the base and located on one side of the support seat; the feeding assembly has a feeding component movably disposed above the packaging tray, and the feeding component has a plurality of clamping slots on the side near the packaging tray that correspond one-to-one with the gripping component, the width of the clamping slots being greater than the outer diameter of the suction nozzle and smaller than the outer diameter of the contact lens mold.

6. The contact lens mold tray mechanism according to claim 5, characterized in that, The feeding assembly also includes: A raised seat is provided on the base and located on one side of the support seat; The slider is slidably disposed on the lifting seat in the direction of the bearing seat; the unloading component is disposed on the side of the slider near the bearing seat; A feeding drive is mounted on the lifting seat, and the output end of the feeding drive is connected to the slider to drive the slider to move.

7. The contact lens mold placement mechanism according to claim 5, characterized in that, The clamping groove includes an opening facing the packaging tray, the opening extending inward to form a locking portion, the width of the opening being greater than the width of the locking portion, and the transition portion between the opening and the locking portion being provided with a rounded corner or a bevel; the width of the locking portion is greater than the outer diameter of the suction nozzle and smaller than the outer diameter of the contact lens mold.

8. A contact lens mold tray mechanism according to any one of claims 1-7, characterized in that, The top of the tray-setting mechanism is provided with a material receiving and positioning mechanism, which includes: A base is disposed on the frame and located above the gripper; The receiving and positioning component is horizontally movably mounted on the base and has a plurality of slots that are horizontally spaced along the moving direction of the receiving and positioning component and have outward openings. The slots are used to engage the contact lens mold. The plurality of slots correspond one-to-one with the plurality of gripping components. A drive component is disposed on the base, and the power output end of the drive component is connected to the material receiving and positioning component, which is used to drive the material receiving and positioning component to move horizontally. The limiting assembly has a limiting plate that can be raised and lowered on the opposite side of the slot, the limiting plate being used to press and position the contact lens mold in the slot.

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