Contact lens astigmatism sheet adjusting and mold closing device

Abstract

The utility model relates to the technical field of contact lens automatic production, in particular to a contact lens astigmatism piece adjusting and mold closing device which comprises a pickup adjusting mechanism, a mold closing driving mechanism, an upper mold recognition mechanism and a lower mold recognition mechanism. The upper die recognition mechanism and the lower die recognition mechanism respectively obtain a mark point of the upper die and a mark point of the lower die; the pick-up adjusting mechanism picks up and adjusts the upper die to enable the mark points of the upper die to be matched with the mark points of the lower die; the die assembly driving mechanism drives the pick-up adjusting mechanism to carry the upper die and move the upper die to the lower die; the die assembly driving mechanism drives the pick-up adjusting mechanism to place the upper die in the lower die in an aligned mode, and die assembly is completed; according to the utility model, the identification points of the upper die and the lower die can be quickly identified, the astigmatism axis matching function of the astigmatism sheet is integrated with the picking and placing functions, and the astigmatism sheet of the contact lens can be quickly rotated and aligned without redundant turnover and complex actions, so that the processing automation of the astigmatism sheet is improved, and the production and processing efficiency of the contact lens is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to contact lens automation production technical field, specifically is a contact lens astigmatism piece adjustment closing die device. BACKGROUND

[0002] Astigmatism is a kind of anisometropia of eye, when parallel light enters eye, due to the different meridians of eyeball on the refractive power, cannot gather in a point, to cause not to form clear object image, moulding method is contact lens forming process, in the preparation process of existing moulding method contact lens, more use high molecular polymer liquid material such as material is placed in the mould of upper and lower closing die and is made;

[0003] Due to the existence of astigmatism contact lens complex surface, one of the most important processes in the preparation process of contact lens astigmatism piece is the positioning of the closing die angle of the mould, because only the stable astigmatism axis can play a role in correcting astigmatism. At present, the astigmatism closing die equipment of the full mould pressing process of domestic contact lens is still in the blank stage. In order to adapt to the automation trend of production and processing, it is urgent to need related equipment and technical support. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of astigmatism piece rotary closing die device that can automatically identify positioning point and adjust alignment.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of contact lens astigmatism piece adjustment closing die device, including pickup adjustment mechanism, the closing die driving mechanism of driving pickup adjustment mechanism moves, the mark point of the upper die of obtaining upper die recognition mechanism, and the mark point of the lower die of obtaining lower die recognition mechanism;

[0007] The mark point of the upper die and the mark point of the lower die are obtained by upper die recognition mechanism and lower die recognition mechanism respectively;Pickup adjustment mechanism picks up and adjusts the upper die so that the mark point of the upper die matches the mark point of the lower die;The closing die driving mechanism drives pickup adjustment mechanism with the upper die, and moves the upper die to the lower die;The closing die driving mechanism drives pickup adjustment mechanism to place the upper die in the lower die, and completes closing die.

[0008] Further, it further includes the temporary storage mechanism of placing to be identified upper die, the temporary storage mechanism includes storage mold frame, the dust removal cavity for collecting and dispersing clean gas is connected to the storage mold frame, the dust removal cavity is communicated with air amplifier, and the air amplifier is connected with external clean gas source;

[0009] When the upper die is located at the storage mold frame and is not placed, the air amplifier is connected with the external clean gas source, the dust removal cavity is guided to blow the upper die above the storage mold frame after collecting and dispersing clean gas, and the upper die is placed on the storage mold frame after dust removal is finished;

[0010] Further, the mold closing driving mechanism comprises a mold closing translation driving and a mold closing lifting driving;

[0011] The mold closing lifting driving is installed at the execution end of the mold closing translation driving; and the execution end of the mold closing lifting driving is provided with a mold closing frame plate for installing the pickup adjusting mechanism;

[0012] Further, the pickup adjusting mechanism comprises a pickup executor, an adjusting driving, and a driving mounting frame;

[0013] The adjusting driving is installed in the driving mounting frame, and drives the pickup executor to rotate forward or reversely until the mark point of the upper mold matches the mark point of the lower mold; and the pickup executor is used for picking up and placing the upper mold to be closed;

[0014] Further, a plurality of adjusting driving are installed in the driving mounting frame, and each adjusting driving is provided with a reset sensor at the side portion; one end of the output shaft of the adjusting driving is connected with the pickup executor, and the other end is provided with a reset trigger piece;

[0015] When the adjusting driving drives the pickup executor to reset, the pickup executor rotates coaxially with the reset trigger piece, and the reset sensor determines that the pickup executor has returned to the initial position through the signal triggered by the reset trigger piece, and the reset is completed.

[0016] Further, the mold closing device further comprises a lower mold carrier for placing the lower mold after liquid injection;

[0017] Further, the upper mold recognition mechanism is provided with an upper mold light source for supplementing light for the upper mold;

[0018] Compared with the prior art, the mold closing device has the following beneficial effects:

[0019] In actual use, the mark points required for the upper mold and the lower mold to be matched and closed are obtained by the upper mold recognition mechanism and the lower mold recognition mechanism, the pickup adjusting mechanism is driven by the mold closing driving mechanism to pick up the upper mold to be closed, and the lower mold is moved, then the upper mold is adjusted to the upper mold recognition point and the lower mold recognition point by the pickup adjusting mechanism, the mold closing driving mechanism drives the pickup adjusting mechanism to move the upper mold to the lower mold, and the upper mold is placed in the lower mold, and the mold closing is completed;

[0020] The contact lens astigmatic lens sheet rotating mold closing device has a compact overall structure, realizes rapid recognition of the recognition points of the upper mold and the lower mold, integrates the matching function of the astigmatic lens axis of the astigmatic lens sheet and the function of picking up and placing, and can complete rapid rotation alignment of the contact lens astigmatic lens sheet without redundant turnover and complex actions, improves the automation of processing of the astigmatic lens sheet, and improves the production and processing efficiency of the contact lens. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1It is a side view schematic diagram of the utility model;

[0022] Figure 2 It is a front view schematic diagram of the utility model;

[0023] Figure 3 It is a whole structure schematic diagram of the utility model;

[0024] Figure 4 It is a A place local enlarged schematic diagram of the utility model. Specific implementation

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0026] Reference Figures 1-4 As shown in the figure, a contact lens astigmatic piece adjustment mold closing device, including pickup adjustment mechanism 430, drive mold closing drive mechanism 420 that moves pickup adjustment mechanism 430, the mark point of the upper die of the upper die identification mechanism 411 is obtained, and the mark point of the lower die of the lower die identification mechanism 412 is obtained;

[0027] The mark point of the upper die and the mark point of the lower die are obtained by the upper die identification mechanism 411 and the lower die identification mechanism 412 respectively;Pickup adjustment mechanism 430 picks up and adjusts the upper die so that the mark point of the upper die matches the mark point of the lower die;Mold closing drive mechanism 420 drives pickup adjustment mechanism 430 with the upper die, and moves the upper die to the lower die;Mold closing drive mechanism 420 drives pickup adjustment mechanism 430 to place the upper die in the lower die, and completes mold closing.

[0028] In actual use, the mark point required for matching and mold closing of the upper die and the lower die is obtained by the upper die identification mechanism 411 and the lower die identification mechanism 412, the mold closing drive mechanism 420 drives the pickup adjustment mechanism 430 to pick up the upper die required for mold closing, and moves the lower die, then the pickup adjustment mechanism 430 adjusts the upper die to match the upper die identification point and the lower die identification point, and then the mold closing drive mechanism 420 drives the pickup adjustment mechanism 430 to move the upper die to the lower die, and places the upper die in the lower die, and completes mold closing.

[0029] The contact lens astigmatic piece rotary mold closing device has compact overall structure, realizes the quick identification of the identification points of the upper die and the lower die, integrates the astigmatic axis matching function of the astigmatic piece and the pickup placement function, does not need redundant turnover and complex action, can complete the quick rotary alignment of the contact lens astigmatic piece, improves the automation of astigmatic piece processing, and improves the contact lens production and processing efficiency.

[0030] In the embodiment, a temporary storage mechanism 440 for placing the upper die to be identified is further included, the temporary storage mechanism 440 includes a storage rack 441 connected to a dust removal cavity 442 for collecting and distributing cleaning gas, the dust removal cavity 442 is communicated with an air amplifier 443 connected to an external cleaning gas source;

[0031] When the upper die is located at the storage rack 441 and is not placed, the air amplifier 443 is connected to the external cleaning gas source, the dust removal cavity 442 collects and distributes the cleaning gas to guide the upper die above the storage rack 441 to blow, and after the dust removal is completed, the upper die is placed on the storage rack 441; the cleaning gas is ion wind with electrostatic dust removal function.

[0032] In the embodiment, the die clamping driving mechanism 420 includes a die clamping translation driving 421 and a die clamping lifting driving 422;

[0033] The die clamping lifting driving 422 is installed at an execution end of the die clamping translation driving 421; the execution end of the die clamping lifting driving 422 is provided with a die clamping rack plate 423 for installing the pickup adjustment mechanism 430;

[0034] The die clamping translation driving 421 and the die clamping lifting driving 422 are both linear motor modules with high-precision control, which can control the die clamping rack plate 423 to realize accurate hovering and then drive the pickup adjustment mechanism 430.

[0035] In the embodiment, the pickup adjustment mechanism 430 includes a pickup executor 435, an adjustment driving 432, and a driving mounting rack 431;

[0036] The adjustment driving 432 is installed in the driving mounting rack 431, the adjustment driving 432 drives the pickup executor 435 to rotate forward or reverse until the mark point of the upper die matches the mark point of the lower die; the pickup executor 435 is used for picking up and placing the upper die to be clamped;

[0037] In the embodiment, a plurality of adjustment drivings 432 are installed in the driving mounting rack 431, and a reset inductor 434 is installed on each side of the adjustment driving 432; one end of an output shaft of the adjustment driving 432 is connected to the pickup executor 435, and the other end is installed with a reset trigger piece 433,

[0038] When the adjustment driving 432 drives the pickup executor 435 to reset, the pickup executor 435 rotates coaxially with the reset trigger piece 433, and the reset inductor 434 determines that the pickup executor 435 has returned to the initial position through the signal triggered by the reset trigger piece 433, completes the reset, and waits for the next upper die adjustment.

[0039] The pickup executor 435 adopts a pneumatic suction nozzle in the embodiment, the adjustment drive 432 selects a double-shaft type encoding step motor, and synchronous output of the double shafts can be realized; a rotating output at one end is installed with a starting trigger piece, which is used for triggering the reset inductor 434 to determine whether the pickup executor 435 reaches the initial position when the reset action is performed; the output shaft at the other end is used for driving the pickup executor 435 to realize high-precision rotation, driving the upper mold to rotate until the upper mold is aligned with the lower mold; a plurality of adjustment drives 432 are arranged in a matrix form as needed, the adaptation to different types of trays can be met as needed, the rotation of a plurality of molds is realized, the operation of the rotation of a plurality of molds is completed at a time, the synchronization rate of each operation is improved, and the efficiency of the rotation of a plurality of molds is further improved.

[0040] In the embodiment, the lower mold carrier 210 for placing the lower mold after liquid injection is further included; the lower molds carried and placed in the lower mold carrier 210 are all lower molds after liquid injection.

[0041] In the embodiment, the upper mold recognition mechanism 411 is provided with an upper mold light source 413 for light compensation of the upper mold; the upper mold light source 413 cooperates with the upper mold recognition mechanism 411 to assist in light compensation of the upper mold, so that the mark point information of the upper mold is more clearly acquired, the accuracy of adjustment of the mold is improved, and the overall production and processing efficiency is further improved.

[0042] The specific embodiments described in the present text are only illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the range defined by the spirit of the present application.

Claims

1. A mold assembly device for contact lens toric adjustment, characterized by, The mold closing device comprises a pickup adjustment mechanism (430), a mold closing driving mechanism (420) driving the pickup adjustment mechanism (430) to move, an upper mold recognition mechanism (411) acquiring a mark point of the upper mold, and a lower mold recognition mechanism (412) acquiring a mark point of the lower mold; The upper mold recognition mechanism (411) and the lower mold recognition mechanism (412) acquire the mark point of the upper mold and the mark point of the lower mold respectively; the pickup adjustment mechanism (430) picks up and adjusts the upper mold so that the mark point of the upper mold matches the mark point of the lower mold; the mold closing driving mechanism (420) drives the pickup adjustment mechanism (430) to move the upper mold to the lower mold; the mold closing driving mechanism (420) drives the pickup adjustment mechanism (430) to place the upper mold in the lower mold in a position, and the mold closing is completed.

2. The mold assembly device for contact lens astigmatic correction according to claim 1, wherein The mold closing device further comprises a temporary storage mechanism (440) for placing the upper mold to be recognized, the temporary storage mechanism (440) comprises a mold storage rack (441) for placing the upper mold, the mold storage rack (441) is connected to a dust removal cavity (442) for collecting and distributing clean gas, the dust removal cavity (442) is connected to an air amplifier (443), and the air amplifier (443) is connected to an external clean gas source; When the upper mold is located at the mold storage rack (441) and is not placed, the air amplifier (443) is connected to the external clean gas source, the dust removal cavity (442) collects and distributes clean gas, and then guides the clean gas to blow the upper mold above the mold storage rack (441), and after the dust removal is completed, the upper mold is placed on the mold storage rack.

3. The mold assembly device for contact lens astigmatic correction according to claim 1, wherein The mold closing driving mechanism (420) comprises a mold closing translation driving mechanism (421) and a mold closing lifting driving mechanism (422). The mold closing lifting driving mechanism (422) is installed at an execution end of the mold closing translation driving mechanism (421), and the execution end of the mold closing lifting driving mechanism (422) is provided with a mold closing rack plate (423) for installing the pickup adjustment mechanism (430).

4. The mold assembly device for contact lens astigmatic correction according to claim 1, wherein The pickup adjustment mechanism (430) comprises a pickup executor (435), an adjustment driving mechanism (432), and a driving installation rack (431). The adjustment driving mechanism (432) is installed in the driving installation rack (431), the adjustment driving mechanism (432) drives the pickup executor (435) to rotate forward or reversely until the mark point of the upper mold matches the mark point of the lower mold, and the pickup executor (435) is used for picking up and placing the upper mold to be closed.

5. The mold assembly device for contact lens astigmatic correction of claim 4, wherein, A plurality of adjustment driving mechanisms (432) are installed in the driving installation rack (431), each adjustment driving mechanism (432) is provided with a reset sensor (434) on a side thereof, one end of an output shaft of the adjustment driving mechanism (432) is connected to the pickup executor (435), and the other end is provided with a reset trigger piece (433). When the adjustment driving mechanism (432) drives the pickup executor (435) to reset, the pickup executor (435) rotates coaxially with the reset trigger piece (433), and the reset sensor (434) determines that the pickup executor (435) has returned to the initial position through a signal triggered by the reset trigger piece (433), and the resetting is completed.

6. The mold assembly device for contact lens astigmatic correction of claim 1, wherein, The mold closing device further comprises a lower mold carrier (210) for placing the lower mold after liquid injection.

7. The mold assembly device for contact lens astigmatic correction of claim 1, wherein, The upper mold recognition mechanism (411) is provided with an upper mold light source (413) for supplementing light for the upper mold.

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