A contact lens injection and compression integrated machine and a method of using the same

Abstract

The application provides a contact lens injection and pressing integrated machine and a use method thereof, which comprises a pressing mechanism, an injection mechanism and a circulating conveying line. The conveying track of the circulating conveying line is in a rectangular shape. The circulating conveying line is provided with two tracks for moving the conveying mold, which are divided into track one and track two. The tail end of the track one is provided with the injection mechanism on the side. The pressing mechanism is arranged on the track two. The tail ends of the track one and the track two are respectively provided with a pushing mechanism one for pushing the conveying mold to the tail end of the track two and the head end of the track one. The head ends of the track one and the track two are respectively provided with a pushing mechanism two for pushing the conveying mold to move along the track direction. The circulating conveying line is used for realizing the circulating conveying of the conveying mold. The reasonable layout of the injection mechanism and the pressing mechanism can not only realize the injection and pressing operation in the conveying process, but also make the conveying mold automatically flow to the initial position, so that manual operation or machine carrying is not needed, the occupied space is reduced, and the cost is lowered.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of contact lens production equipment, and particularly relates to a contact lens liquid injection and pressing integrated machine and a use method thereof. BACKGROUND

[0002] A contact lens, also called a corneal contact lens or a corneal contact lens, is a lens worn on the cornea of the eyeball to correct vision or protect the eyes. The beauty lens is a contact lens. According to the hardness of the material, it includes three kinds of hard, semi-hard and soft. Contact lenses not only bring great improvement to myopia, hypermetropia, astigmatism and other ametropia patients in terms of appearance and convenience, but also have wide field of view and realistic vision. In addition, it also plays a special role in controlling the development of myopia and astigmatism in adolescents and treating special eye diseases.

[0003] In the production process of the contact lens, the liquid injection, pressing and curing processes are required. Each process is equipped with corresponding liquid injection machines, pressing machines and curing machines and other equipment. In the prior art, the liquid injection machines and pressing machines are mostly distributed on the side of the conveying belt in sequence, and the mold is conveyed in a pipeline through the conveying belt. The liquid injection and pressing operations are realized during the mold conveying process.

[0004] However, the existing conveying belt is mostly in the form of a character, and the character pipeline has a mold transfer problem. The mold at the end of the pipeline needs to be transferred to the beginning of the pipeline by manual transfer or machine transfer. A transfer channel needs to be reserved in space, and the transfer cost is high. In addition, a large number of molds and a long conveying belt are needed to support the mold transfer time, so that the automatic production will not be stopped when the mold is transferred. SUMMARY

[0005] In view of the above problems in the prior art, the present application provides a contact lens liquid injection and pressing integrated machine. The mold is conveyed in a circulating manner through a circulating conveying line. Through the reasonable layout of the liquid injection mechanism and the pressing mechanism, the liquid injection and pressing operations can be realized during the conveying process, and the conveying mold can be automatically circulated to the initial position without manual transfer or machine transfer, thereby reducing the occupied space and the cost.

[0006] A contact lens liquid injection and pressing integrated machine comprises a pressing mechanism and a liquid injection mechanism, and further comprises a circulating conveying line. The conveying track of the circulating conveying line is in the shape of a rectangle. The circulating conveying line is provided with two parallel tracks for moving the mold. The two tracks are track one and track two. The mold is used to load the female mold and the male mold of the contact lens. The tail end of the track one is provided with the liquid injection mechanism on the side. The track two is provided with the pressing mechanism.

[0007] The tail end of the track one and the track two is respectively provided with a pushing mechanism one for pushing the transport mold to the head end of the track two and the track one, and the head end of the track one and the track two is respectively provided with a pushing mechanism two for pushing the transport mold to move along the track direction.

[0008] Preferably, the head end of the track one is a female mold loading station, and the tail end is a liquid injection station, the head end of the track two is a male mold loading station, and the tail end is a material taking station, and the track two further comprises a pressing station, which is located between the male mold loading station and the material taking station.

[0009] Preferably, the track one and the track two are installed on a bottom plate, the pushing mechanism one and the pushing mechanism two both comprise a translation assembly, the pushing mechanism one further comprises a push plate connected with the translation assembly, and the pushing mechanism two further comprises an auxiliary block connected with the translation assembly, the auxiliary block and the push plate are both carried on the bottom plate, the translation assembly is used to drive the auxiliary block and the push plate to move, push the transport mold to move, and the bottom plate is provided with a baffle at the tail end of the track one and the track two.

[0010] Preferably, the top of the female mold loading station and the male mold loading station is provided with a loading module, the loading module comprises a Y-axis moving assembly, an X-axis moving assembly, a Z-axis moving assembly and a suction cup one, the X-axis moving assembly is respectively and slidingly connected with the Y-axis moving assembly and the Z-axis moving assembly, and the suction cup one is connected with the Z-axis moving assembly through a suction cup frame.

[0011] Preferably, the side of the female mold loading station is provided with a female mold transmission line for transmitting the female mold, the side of the female mold transmission line is provided with a cylinder one, the telescopic end of the cylinder one is connected with a pressing plate, and the pressing plate is located above the female mold transmission line and used to press the female mold.

[0012] The side of the male mold loading station is provided with a male mold transmission line for transmitting the male mold, the male mold transmission line comprises a rotating wheel, a motor, a transmission belt and a receiving frame, the two ends of the receiving frame are respectively provided with a rotating wheel, one of the rotating wheels is drivingly connected with the motor, and the two ends of the transmission belt are respectively sleeved with the rotating wheels, the transmission belt is tensioned on the receiving frame and used to transmit the male mold.

[0013] The male mold transmission line is provided with a turnover mechanism, the turnover mechanism comprises a turnover motor, a connecting plate, a rotating plate and a suction cup two, the turnover motor is installed on the connecting plate, the driving end of the turnover motor is connected with the rotating plate, the other end of the rotating plate is rotationally connected with the connecting plate, the rotating plate is installed with the suction cup two used to adsorb the male mold, and the connecting plate is installed on the male mold transmission line through a cylinder four.

[0014] The female mold transmission line and the male mold transmission line are respectively provided with a photoelectric sensor used to count.

[0015] Preferably, the female mold transmission line and the male mold transmission line are respectively provided with an adjusting assembly, the adjusting assembly comprises a second air cylinder and a distance adjusting plate, the distance adjusting plate is in the shape of a harrow, and is used for adjusting the feeding distance of the female mold or the male mold to adapt to the positions of the first suction disc and the second suction disc.

[0016] Preferably, the pressing mechanism comprises a pressing air cylinder, a fixed plate, a supporting rod, a movable plate and a pressing head, the fixed plate is arranged above the pressing station through the supporting rod, the pressing air cylinder is installed on the fixed plate, the telescopic end of the pressing air cylinder is connected with the movable plate, the movable plate is slidably sleeved with the supporting rod, the pressing head for pressing the female mold and the male mold is installed on the movable plate, and the pressing mechanism further comprises a pressure sensor for measuring the pressing force of the pressing head.

[0017] The liquid injection mechanism is arranged above the liquid injection station and comprises a connecting channel for transmitting raw liquid and a liquid injection head for injecting liquid into the female mold, the liquid injection head is provided with a protective plate, and the liquid injection mechanism further comprises a peristaltic pump for controlling the liquid injection amount.

[0018] Preferably, the dust removal assembly is further arranged on the side of the first track and comprises an air pump and an air blowing pipeline, and is used for removing dust from the female mold.

[0019] The two feeding machines are respectively connected with the female mold transmission line and the male mold transmission line.

[0020] The female mold transmission line, the feeding module, the dust removal assembly, the pressing mechanism, the liquid injection mechanism and the circulating transportation line are all arranged on the workbench, and the workbench is provided with a protective box.

[0021] The mechanical hand is arranged on the side of the material taking station of the second track, and the mechanical hand is provided with a third suction disc for moving out the workpiece after the pressing is completed.

[0022] Another object of the present application is to provide a use method of the contact lens liquid injection and pressing integrated machine, which comprises the following steps.

[0023] The circulating transportation line pushes the transportation mold loaded with the female mold to the liquid injection station to perform liquid injection, then pushes the transportation mold after the liquid injection is completed to the male mold feeding station to perform male mold feeding, then pushes the transportation mold after the feeding is completed to the pressing station to perform pressing operation, then pushes the transportation mold after the pressing is completed to the material taking station to wait for workpiece taking, and then pushes the empty transportation mold to the female mold feeding station to wait for female mold feeding after the material taking is completed, and the operation is repeated to realize the circulating transportation of the transportation mold.

[0024] Preferably, the method comprises the following steps.

[0025] The two feeding machines respectively transport the female mold and the male mold to the female mold transmission line and the male mold transmission line, and adjust the distance between the female mold and the male mold through the adjusting assembly.

[0026] The upper mold module transfers the female mold into the transport mold on the female mold loading station, and transfers the male mold into the transport mold on the male mold loading station, and makes the male mold and the completed female mold of liquid injection joint, wherein the male mold is turned over by the turnover mechanism before transfer;

[0027] The circulating transport line moves the transport mold with the female mold in the track one by the pushing mechanism two, and performs dust removal operation on the female mold by the dust removal assembly;

[0028] The liquid injection mechanism performs liquid injection on the transport mold on the liquid injection station;

[0029] The pushing mechanism one pushes the completed transport mold on the liquid injection station to the male mold loading station and waits for the male mold loading, so that the male mold and the female mold are jointed;

[0030] The circulating transport line moves the transport mold with the male mold and the female mold in the track two to the pressing station by the pushing mechanism two, so that the pressing mechanism performs pressing;

[0031] The pushing mechanism two pushes the completed workpiece to the material taking station, and waits for material taking;

[0032] After the manipulator takes the workpiece on the material taking station, the pushing mechanism one pushes the empty transport mold to the female mold loading station, waits for the female mold loading, and repeats the operation to realize the circulating transport of the transport mold.

[0033] The contact lens liquid injection and pressing integrated machine and the using method thereof have the beneficial effects that the pushing mechanism one and the pushing mechanism two push the transport mold to move, so that the transport mold can move along the rectangular transport track, thereby realizing the circulating transport of the transport mold, and the transport mold can automatically flow to the initial position without manual adjustment or machine handling, which is beneficial to cost saving.

[0034] The liquid injection mechanism and the pressing mechanism are reasonably distributed on the side of the circulating transport line, which can not only perform liquid injection and pressing operation during the transport of the transport mold, realize automatic dripping, guarantee liquid injection quality, control pressing force, ensure the pressing of the female mold and the male mold, but also can reduce the occupied space, and does not need to reserve the transfer channel for manual adjustment or machine handling, and the production site has strong applicability.

[0035] The present application has a special process layout, so that the processing time of each station is equivalent, and there is no situation of long waiting for other stations. The overall operation pace is accelerated, and the processing efficiency is improved. DETAILED DESCRIPTION

[0036] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0037] Figure 1 is a structural schematic diagram of the workbench of the present application;

[0038] Figure 2 is a top view of the workbench of the present application;

[0039] Figure 3 is a route schematic diagram of the circulating transport line of the present application;

[0040] Figure 4 is a structural schematic diagram of the circulating transport line drive of the present application;

[0041] Figure 5 is a structural schematic diagram of the feeding module of the present application;

[0042] Figure 6 is a structural schematic diagram of the adjusting assembly of the present application;

[0043] Figure 7 is a structural schematic diagram of the pressing mechanism of the present application;

[0044] Figure 8 is a structural schematic diagram of the liquid injection mechanism of the present application;

[0045] Figure 9 is a structural schematic diagram of the turnover mechanism of the present application;

[0046] Figure 10 is a structural schematic diagram of the female mold transport line of the present application;

[0047] Figure 11 is a structural schematic diagram of the second embodiment of the present application.

[0048] Marked in the figure: 100, transport mold; 1, workbench; 2, female mold conveying line; 201, cylinder one; 202, pressing plate; 203, extension plate; 204, cylinder three; 205, limit plate one; 3, feeding module; 301, Y-axis moving assembly; 302, X-axis moving assembly; 303, Z-axis moving assembly; 304, suction cup rack; 305, suction cup one; 4, dust removal assembly; 5, pressing mechanism; 501, pressing cylinder; 502, fixed plate; 503, supporting rod; 504, movable plate; 505, pressing head; 6, liquid injection mechanism; 601, connecting channel; 602, liquid injection head; 603, protection plate; 7, overturning mechanism; 701, overturning motor; 702, connecting plate; 703, rotating plate; 704, cylinder four; 705, suction cup two; 8, male mold conveying line; 801, rotating wheel; 802, motor; 803, conveying belt; 804, receiving rack; 805, limit plate two; 806, cylinder five; 9, circulating conveying line; 901, bottom plate; 902, translation assembly; 903, auxiliary block; 904, push plate; 905, baffle; 10, adjusting assembly; 1001, distance adjusting plate; 1002, cylinder two; 11, feeding machine; 12, mechanical hand; 13, suction cup three; 14, protection box; 15, track one; 16, track two; 17, female mold feeding station; 18, liquid injection station; 19, male mold feeding station; 20, material taking station; 21, pressing station. DETAILED DESCRIPTION

[0049] Embodiment one

[0050] As Figure 1 , Figure 2 shown, a contact lens liquid injection and pressing integrated machine includes a pressing mechanism 5, a liquid injection mechanism 6, and a circulating conveying line 9, the pressing mechanism 5, the liquid injection mechanism 6, and the circulating conveying line 9 are all installed on a workbench 1, wherein the pressing mechanism 5 and the liquid injection mechanism 6 are distributed on the side of the circulating conveying line 9, specifically at the pressing station 21 and the liquid injection station 18 of the circulating conveying line 9.

[0051] The circulating conveying line 9 is provided with a transport mold 100, the transport mold 100 is used to load female molds and male molds of contact lenses, the liquid injection mechanism 6 is used to inject raw liquid for producing contact lenses into the female molds, and the pressing mechanism 5 is used to press the male molds and the female molds filled with the raw liquid of the contact lenses, so that the raw liquid can be attached to the female molds and the male molds, facilitating the molding of the contact lenses in the subsequent curing process.

[0052] Specifically, please refer to Figure 3, the transport track of the circulating transport line 9 is rectangular, the circulating transport line 9 is provided with two parallel tracks for moving the mold 100, which are track one 15 and track two 16, the track one 15 is provided with a female mold loading station 17 and a liquid injection station 18, which are respectively located at the head end and tail end of the track one 15; the track two 16 is provided with a male mold loading station 19, a material taking station 20 and a pressing station 21, the male mold loading station 19 and the material taking station 20 are respectively located at the head end and tail end of the track two 16, and the pressing station 21 is located between the male mold loading station 19 and the material taking station 20.

[0053] As shown in Figure 1 , Figure 4 , the track one 15 and the track two 16 are installed on the bottom plate 901, in order to realize the circulating transmission of the mold 100 on the circulating transport line 9, the tail end of the track one 15 and the track two 16 is respectively provided with a pushing mechanism one for pushing the mold 100 to the head end of the track two 16 and the track one 15, and the head end of the track one 15 and the track two 16 is respectively provided with a pushing mechanism two for pushing the mold 100 to move along the track direction.

[0054] As shown in Figure 3 , the pushing mechanism one is used for pushing the mold 100 on the liquid injection station 18 to the male mold loading station 19, or for pushing the mold 100 on the material taking station 20 to the female mold loading station 17; the pushing mechanism two is used for pushing the mold 100 on the female mold loading station 17 to the liquid injection station 18, or for pushing the mold 100 on the male mold loading station 19 to the material taking station 20.

[0055] Please refer to Figure 4 , the pushing mechanism one includes a translation assembly 902 and a push plate 904 connected with the translation assembly 902, and the pushing mechanism two includes a translation assembly 902 and an auxiliary block 903 connected with the translation assembly 902. Among them, the translation assembly 902 is used to drive the auxiliary block 903 or the push plate 904 to move, push the mold 100 to move, and the specific structure of the translation assembly 902 is not limited, in a specific embodiment, the translation assembly 902 at the tail end of the track one 15 and the head end of the track two 16 is a transverse moving module, because the female mold is injected with contact lens liquid at the liquid injection station 18, and there is liquid inside, it needs to be more stable when moving to avoid liquid splashing, therefore, when moving from the track one 15 to the track two 16 and moving in the track two 16, a stable transverse moving module is needed to push the mold 100; while the translation assembly 902 at the head end of the track one 15 and the tail end of the track two 16 adopts a pneumatic cylinder, which can push the mold 100 to move.

[0056] In addition, the auxiliary block 903 and the push plate 904 are mounted on the bottom plate 901, and the auxiliary block 903 and the push plate 904 can move on the bottom plate 901 through the translation assembly 902, so as to push the transport mold 100 to move. The bottom plate 901 is provided with a baffle 905 at the tail end of the track one 15 and the track two 16, and the baffle 905 is used for limiting the transport mold 100.

[0057] In one specific embodiment, the transport mold 100 is in a strip shape, and therefore, the push plate 904 is in a plate structure, which is convenient for pushing from the long side of the transport mold 100. The auxiliary block 903 is in a J-shaped structure, extends from the side below the bottom plate 901 to the top of the bottom plate 901, and then bends downward. The J-shaped auxiliary block 903 is located at the head end of the track two 16, limits the right end surface of the transport mold 100 transferred from the track one 15, and directly pushes the transport mold 100 from the end surface, so as to avoid knocking against the supporting legs of the bottom plate 901. The J-shaped structure design can make the auxiliary block 903 always lap the bottom plate 901, and the movement is more stable. In this embodiment, a horizontal moving module is installed below the bottom plate 901, and the auxiliary block 903 is installed on the horizontal moving module. After the auxiliary block 903 pushes the transport mold 100 containing the raw solution to the next work station adjacent to the transport mold 100 relatively slowly and stably, the auxiliary block 903 returns to the initial position at the head end of the track two 16 quickly. In this process, the next transport mold 100 on the track one 15 is completed with the injection of the raw solution and is pushed to the track two 16 by the pushing mechanism one. The time beats of the two are quite, and basically no waiting is needed, so the working hours of each work station are balanced.

[0058] As shown in Figure 7 The pressing mechanism 5 is mainly used for pressing the male mold and the female mold containing the raw solution of the contact lenses, so that the raw solution can be attached to the female mold and the male mold, and the molding of the contact lenses in the subsequent curing process is facilitated. The working principle of the pressing mechanism 5 is the same as that of the prior art. In one specific embodiment, the pressing mechanism 5 includes a pressing cylinder 501, a fixed plate 502, a supporting rod 503, a movable plate 504, and a pressing head 505. The fixed plate 502 is erected above the pressing station 21 through the supporting rod 503. The pressing cylinder 501 is installed on the fixed plate 502. The telescopic end of the pressing cylinder 501 is connected with the movable plate 504. The movable plate 504 is slidably sleeved with the supporting rod 503. The movable plate 504 is provided with the pressing head 505 for pressing the female mold and the male mold.

[0059] In addition, the pressing mechanism 5 further includes a pressure sensor, which is used for ensuring that the force of the pressing cylinder 501 driving the pressing head 505 to press downward is a preset value, so as to ensure that the pressing operation meets the preset requirements.

[0060] As shown in Figure 8As shown, the liquid injection mechanism 6 is mainly used for injecting the raw liquid for producing contact lenses into the female mold, and its working principle is the same as that of the prior art. In a specific embodiment, the liquid injection mechanism 6 includes a connecting channel 601 for transmitting the raw liquid and a liquid injection head 602 for injecting the raw liquid into the female mold, and the liquid injection head 602 is provided with a protective plate 603. A peristaltic pump is arranged in the liquid injection mechanism 6, and the peristaltic pump can be used to inject an equal amount of raw liquid into the female mold.

[0061] In this embodiment, the track one 15, the track two 16 and the structure of the material pushing mechanism one and the material pushing mechanism two are designed to realize the circulation transmission of the mold 100, and no manual carrying or machine transfer channel needs to be reserved. The liquid injection mechanism 6 and the pressing mechanism 5 are reasonably distributed on the circulation transport line 9, so that each station on the circulation transport line 9 can act at the same time and the working time is equivalent, the standby time is short, and the production efficiency can be effectively improved.

[0062] Embodiment two

[0063] As shown in Figure 1 , Figure 2 , Figure 11 The structure of this embodiment is basically the same as that of embodiment one, and the difference lies in that, in order to realize the automatic feeding of the female mold and the male mold, the feeding mold group 3 is arranged above the female mold feeding station 17 and the male mold feeding station 19, the female mold transport line 2 for transporting the female mold is arranged beside the female mold feeding station 17, the male mold transport line 8 for transporting the male mold is arranged beside the male mold feeding station 19, and the feeding ends of the female mold transport line 2 and the male mold transport line 8 are respectively connected with the feeding machine 11. The female mold or the male mold is pre-stored in the feeding machine 11, and the feeding principle of the existing feeding machine 11 is used to transport the female mold to the female mold transport line 2 and transport the male mold to the male mold transport line 8.

[0064] Please refer to Figure 5 , the feeding mold group 3 includes a Y-axis moving assembly 301, an X-axis moving assembly 302, a Z-axis moving assembly 303 and a suction cup one 305, the X-axis moving assembly 302 is respectively slidably connected with the Y-axis moving assembly 301 and the Z-axis moving assembly 303, and the suction cup one 305 is connected with the Z-axis moving assembly 303 through a suction cup holder 304. The Y-axis moving assembly 301, the X-axis moving assembly 302 and the Z-axis moving assembly 303 form a three-axis mold group, and the movement of the suction cup one 305 along the X-axis, the Y-axis and the Z-axis is realized.

[0065] As shown in Figure 10 , Figure 11As shown, the female mold feeding is through the vibration disc to feed the female mold into the female mold conveying line 2. In order to avoid the vibration of the female mold feeding, the female mold conveying line 2 is provided with a cylinder one 201, the telescopic end of the cylinder one 201 is connected with a pressing plate 202, the pressing plate 202 is located above the female mold conveying line 2, and is used for pressing the female mold to avoid the displacement of the female mold. The pressing plate 202 covers the entire female mold conveying line 2, and presses all the female molds thereon. It should be understood that the pressing plate 202 in the device presses the female mold, that is, the pressing plate 202 is located above the female mold and is close to the height of the female mold. Therefore, the female mold can be smoothly conveyed forward, and only when the female mold vibrates slightly, the pressing plate 202 temporarily applies downward pressure to inhibit the vibration and falling of the female mold.

[0066] In addition, the female mold conveying line 2 is provided with a cylinder three 204 through an extension plate 203, the cylinder three 204 drives a limiting plate one 205 to slide in the conveying groove of the female mold conveying line 2, and the limiting plate one 205 is used for limiting the female mold feeding.

[0067] As shown in the specific embodiment, Figure 9 The male mold conveying line 8 includes rotating wheels 801, a motor 802, a conveying belt 803 and a receiving frame 804, wherein the two ends of the receiving frame 804 are respectively provided with the rotating wheels 801, one of the rotating wheels 801 is drivingly connected with the motor 802, the two ends of the conveying belt 803 are respectively sleeved with the rotating wheels 801, and the conveying belt 803 is tensioned on the receiving frame 804. The motor 802 drives the rotating wheels 801 to rotate, thereby driving the conveying belt 803 to transmit, so as to realize the transmission and feeding of the female mold.

[0068] The male mold conveying line 8 is provided with a cylinder five 806, the cylinder five 806 drives a limiting plate two 805 to slide on the conveying belt 803 of the male mold conveying line 2, and the limiting plate two 805 is used for limiting the male mold feeding.

[0069] In addition, the female mold conveying line 2 and the male mold conveying line 8 are both provided with photoelectric sensors, the number of the female mold and the male mold feeding is counted through the photoelectric sensors, and the feeding speed is controlled.

[0070] Due to the structural features of the contact lenses, after the negative mold is injected with the original solution, the arc end of the positive mold needs to be clamped with the negative mold to facilitate the curing and forming of the contact lenses. Therefore, when loading the positive mold, in order to avoid the arc end of the positive mold being damaged by friction, the arc end of the positive mold needs to be upward during loading. Therefore, before the positive mold is clamped with the negative mold, the positive mold needs to be turned over. Therefore, the turning mechanism 7 is arranged on the positive mold conveying line 8. The turning mechanism 7 includes a turning motor 701, a connecting plate 702, a rotating plate 703, and a suction cup two 705. The turning motor 701 is installed on the connecting plate 702. The driving end of the turning motor 701 is connected with the rotating plate 703. The other end of the rotating plate 703 is rotationally connected with the connecting plate 702. The suction cup two 705 for adsorbing the positive mold is installed on the rotating plate 703. The connecting plate 702 is installed on the positive mold conveying line 8 through the cylinder four 704. The cylinder four 704 is used to adjust the height of the suction cup two 705, so that the suction cup two 705 does not hinder the normal transmission of the positive mold. After the positive mold is adsorbed by the suction cup two 705, the rotating plate 703 is driven to rotate by the turning motor 701, so as to realize the turning of the positive mold. The positive mold is convenient for the loading module 3 to transfer it to the positive mold loading station 19 and clamp with the negative mold loaded with the contact lens original solution.

[0071] As shown in Figure 6 To match the position of the suction cup one 305 of the loading module 3 at the positions of the negative mold loading station 17 and the positive mold loading station 19, the distance between the negative mold and the positive mold needs to be adjusted during loading. Therefore, the adjusting assembly 10 is arranged on the negative mold conveying line 2 and the positive mold conveying line 8 respectively. The adjusting assembly 10 includes a cylinder two 1002 and a distance adjusting plate 1001. The distance adjusting plate 1001 is in the shape of a harrow. The lengths of the harrow teeth are different. The length of the harrow teeth on the distance adjusting plate 1001 is the longest at the center axis and gradually decreases towards both sides. The top end of the harrow teeth is designed as a sharp angle, which is convenient for separating the adjacent negative molds or positive molds to achieve the purpose of distance adjustment. When the cylinder two 1002 drives the distance adjusting plate 1001 to move, the center axis first contacts the positive mold or the negative mold, and the adjacent negative molds or positive molds are separated through the design of different lengths of the harrow teeth.

[0072] The device arranges the female mold transmission line 2 and the male mold transmission line 8 outside the rectangular circulating line, so that two feeding stations in the rectangular circulating line can feed at the same time while the mold 100 is circulated and transported, and the working hours of the two feeding stations are close to the working hours of each station on the rectangular circulating line. For example, when feeding the male mold, multiple actions are involved, such as changing the distance of the male mold, adsorbing the male mold once, turning over the male mold, adsorbing the male mold twice, and feeding the male mold. As a result, the overall working hours of the station are relatively long. However, the device divides the multiple actions into synchronous operations again, for example, changing the distance of the male mold is performed synchronously with turning over the male mold, that is, the turning over mechanism 7 turns over the previous group of male molds at the same time, the adjusting assembly 10 adjusts the distance of the next group of male molds to prepare for turning over, and the feeding mold group 3 for adsorbing the male mold twice has moved the suction cup 1 305 above the group of male molds in advance, and adsorbs the male mold immediately after the male mold is turned over in place; similarly, while the feeding mold group 3 feeds the group of male molds into the transport mold 100, the turning over mechanism 7 resets to prepare for turning over the next group of male molds. By setting the mechanisms in the male mold feeding station 19 as described above, the action rhythm is reduced, and the overall working hours of the station are close to the working hours of a single station on the rectangular circulating line.

[0073] When the adjusting assembly 10 adjusts the distance between the female mold or the male mold, a certain space needs to be reserved on the female mold transmission line 2 and the male mold transmission line 8. The fixed position limiting plate will hinder the distance adjustment of the distance adjusting plate 1001, so the limiting plate one 205 is driven to shift by the cylinder three 204, and the limiting plate two 805 is driven to shift by the cylinder five 806, so that the limiting plate one 205 and the limiting plate two 805 can leave a distance adjustment space when the distance adjusting plate 1001 adjusts the distance.

[0074] As shown in Figure 1 , Figure 2 , Figure 11 To perform dust removal operation on the female mold, the embodiment further includes a dust removal assembly 4 installed beside the track one 15, which includes a gas pump and a gas blowing pipeline. The gas pump and the gas blowing pipeline blow gas to the female mold to achieve the purpose of dust removal of the female mold.

[0075] To realize automatic production, a mechanical hand 12 is arranged beside the taking station 20 on the track two 16, and a suction cup three 13 for moving out the completed workpiece is installed on the mechanical hand 12. The mechanical hand 12 realizes the transfer of the workpiece, which is more automatic and efficient than manual transfer.

[0076] In addition, the female mold transmission line 2, the feeding mold group 3, the dust removal assembly 4, the pressing mechanism 5, the liquid injection mechanism 6 and the circulating transport line 9 are all installed on the workbench 1, and the workbench 1 is provided with a protection box 14.

[0077] Embodiment three

[0078] The second object of the present application is to provide a method for using the contact lens injection and compression integrated machine, the transport mold 100 loaded with the female mold is pushed to the injection position 18 by the circulating transport line 9 to perform injection, then the transport mold 100 after injection is pushed to the male mold loading position 19 to load the male mold, then the transport mold 100 after loading is pushed to the compression position 21 to perform compression operation, after compression, the transport mold 100 is pushed to the material taking position 20 to wait for workpiece taking, after taking, the empty transport mold 100 is pushed to the female mold loading position 17 to wait for female mold loading, and the operation is repeated to realize the circulating transport of the transport mold 100.

[0079] The method specifically comprises the following steps:

[0080] The two loading machines 11 respectively transport the female molds and the male molds to the female mold transmission line 2 and the male mold transmission line 8, and adjust the distance between the female molds and the male molds through the adjusting assembly 10; wherein the loading principle of the loading machine 11 is the same as that of the prior art, in order to realize the sequential loading of the female molds and the male molds, the adjusting assembly 10 drives the distance adjusting plate 1001 to move through the cylinder two 1002, through the structural design of the distance adjusting plate 1001, the adjacent female molds or male molds are separated, the distance between the female molds and the male molds is adjusted, and the loading of the loading module 3 is facilitated. In addition, the number of female molds and male molds loaded is counted through the photoelectric sensor during the loading process, and the loading speed is controlled.

[0081] In addition, when the female mold transmission line 2 transmits the female molds, the cylinder one 201 drives the pressing plate 202 to press the female molds throughout the transmission to avoid the vibration of the vibration disc during the loading to cause the female molds to shift and fall off.

[0082] Before the female molds are adsorbed, the cylinder one drives the pressing plate 202 to retreat and reset, the loading module 3 drives the suction cup one 305 to adsorb the female molds on the female mold transmission line 2 and transfer them to the transport mold 100 on the female mold loading position 17.

[0083] The circulating transport line 9 pushes the transport mold 100 loaded with the female molds to move in the track one 15 through the pushing mechanism two, and performs dust removal operation on the female molds through the dust removal assembly 4.

[0084] The injection mechanism 6 performs female mold injection on the transport mold 100 on the injection position 18, wherein the peristaltic pump can inject an equal amount of original liquid into the female mold to control the injection quality.

[0085] The pushing mechanism one pushes the transport mold 100 after injection on the injection position 18 to the male mold loading position 19 and waits for male mold loading, so that the male mold is clamped with the female mold.

[0086] Before the male mold is transported, the male mold is rotated by the flipping motor 701 of the flipping mechanism 7 to flip the male mold, and then the flipped male mold is adsorbed by the suction disc I 305 of the feeding module 3 and transported to the transport mold 100 on the male mold feeding station 19, so that the male mold is clamped with the female mold completed by liquid injection.

[0087] The transport line 9 moves the transport mold 100 with the male mold and the female mold to the pressing station 21 in the track II 16 by the pushing mechanism II, so that the pressing mechanism 5 is pressed, wherein the pressure sensor can ensure that the force of the pressing cylinder 501 driving the pressing head 505 to press down is a preset value, so as to ensure that the pressing operation meets the preset requirements.

[0088] The workpiece after pressing is pushed to the material taking station 20 by the pushing mechanism II, and waits for material taking.

[0089] After the manipulator 12 takes the workpiece on the material taking station 20, the empty transport mold 100 is pushed to the female mold feeding station 17 by the pushing mechanism I, and waits for female mold feeding.

[0090] The above operations are repeated, and in the production of contact lenses, the female mold and the male mold are automatically fed; the transport mold 100 is automatically circulated; during the transport of the transport mold 100, the automatic dropping of the contact lens stock solution and the automatic pressing of the female mold and the male mold are realized, and the injection quality and the pressing force can be accurately controlled.

[0091] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, the skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A contact lens injection and pressing integrated machine, comprising a pressing mechanism (5) and an injection mechanism (6), characterized in that, It also includes a circular transport line (9), the transport trajectory of which is rectangular. The circular transport line (9) is provided with two parallel tracks for the transport mold (100) to move, which are divided into track one (15) and track two (16). The transport mold (100) is used to load the negative mold and positive mold of the contact lens. The side of the tail end of track one (15) is equipped with a liquid injection mechanism (6), and a pressing mechanism (5) is mounted on track two (16). It also includes a pusher mechanism 1 and a pusher mechanism 2, wherein the pusher mechanism 1 is configured to push the transport mold (100) from the end of the first track (15) to the second track (16), or push the transport mold (100) from the end of the second track (16) to the first track (15). The second pushing mechanism is configured to push the transport mold (100) along the first track (15) or the second track (16); The contact lens injection and pressing machine further includes: a female mold transmission line (2) configured to transmit a female mold, and a male mold transmission line (8) configured to transmit a male mold, wherein the female mold transmission line (2) and the male mold transmission line (8) are located beside the circulating transport line (9). Above the female mold transmission line (2) and the male mold transmission line (8), a feeding module (3) is installed. The feeding module (3) includes a three-axis module and a suction cup (305) driven by the three-axis module to move along the X-axis, Y-axis and Z-axis. The suction cup (305) is connected to the three-axis module through a suction cup frame (304). The positive mold transmission line (8) is also equipped with a flipping mechanism (7). The flipping mechanism (7) includes a flipping motor (701) and a rotating plate (703) driven by the flipping motor (701) to flip. The rotating plate (703) is equipped with a suction cup (705). The flipping mechanism (7) also includes a cylinder (704) that drives the suction cup (705) to move up and down. The contact lens injection and pressing machine also includes an adjustment component (10) configured to be adapted to the feeding module (3). The adjustment component (10) includes a second cylinder (1002) and an adjustment plate (1001) driven to move by the second cylinder (1002). The adjustment plate (1001) is rake-shaped and is used to adjust the feeding distance of the female mold or male mold to be adapted to the position of the first suction cup (305) and the second suction cup (705).

2. The contact lens injection and pressing integrated machine according to claim 1, characterized in that, The first end of the first track (15) is the female mold loading station (17), and the last end is the liquid injection station (18). The first end of the second track (16) is the male mold loading station (19), and the last end is the material removal station (20). The second track (16) also includes a pressing station (21), which is located between the male mold loading station (19) and the material removal station (20).

3. The contact lens injection and pressing integrated machine according to claim 1, characterized in that, The first track (15) and the second track (16) are mounted on the base plate (901). The first and second pushing mechanisms both include a translation component (902). The first pushing mechanism also includes a push plate (904) that is driven by the translation component (902) to slide on the base plate (901) and push the transport mold (100) to another track. The second pushing mechanism also includes an auxiliary block (903) that is driven by the translation component (902) to slide on the base plate (901) and push the transport mold (100) along the current track. The auxiliary block (903) is configured as a hook-shaped body that bends from the side of the base plate (901) to the top of the base plate (901). When the transport mold (100) is transferred and pushed to the current track, the auxiliary block (903) positions its end face. The base plate (901) is equipped with a baffle (905) at the tail end of the first track (15) and the second track (16).

4. The contact lens injection and pressing integrated machine according to claim 1, characterized in that, A photoelectric sensor for counting is installed on the female transmission line (2); A pressure plate (202) for pressing the female mold is mounted above the female mold transmission line (2). The pressure plate (202) is driven to move by cylinder 1 (201) and covers the entire female mold transmission line (2). The female mold transmission line (2) is supported by an extension plate (203) and a cylinder three (204) is connected to it. The cylinder three (204) drives the limiting plate one (205) to slide in the transmission groove of the female mold transmission line (2).

5. The contact lens injection and pressing integrated machine according to claim 1, characterized in that, The positive mold transmission line (8) is equipped with a photoelectric sensor for counting, and the positive mold transmission line (8) transmits the positive mold through a transmission belt (803) driven by a motor (802); A cylinder five (806) is installed on the male mold transmission line (8), and the cylinder five (806) drives the limiting plate two (805) to slide on the transmission belt (803) of the male mold transmission line (8).

6. The contact lens injection and pressing integrated machine according to claim 2, characterized in that, The pressing mechanism (5) includes a pressing cylinder (501) mounted above the pressing station (21) and a movable plate (504) driven by the pressing cylinder (501) to move up and down. The movable plate (504) is equipped with a pressing head (505) for pressing the female mold and the male mold. The pressing mechanism (5) also includes a pressure sensor for measuring the downward pressure of the pressing head (505). The injection mechanism (6) is mounted above the injection station (18) and includes a connecting channel (601) for transmitting the original liquid and an injection head (602) for injecting liquid into the female mold. A protective plate (603) is installed on the injection head (602). The injection mechanism (6) also includes a peristaltic pump for controlling the amount of liquid injected.

7. The contact lens injection and pressing integrated machine according to claim 1, characterized in that, It also includes a dust removal component (4), which is installed on the side of track one (15) and includes an air pump and an air blowing pipe for dust removal of the negative mold; It also includes two feeding machines (11), which are connected to the female mold transmission line (2) and the male mold transmission line (8) respectively; The female mold transmission line (2), feeding module (3), dust removal component (4), pressing mechanism (5), liquid injection mechanism (6) and circulating transport line (9) are all installed on the workbench (1), and the workbench (1) is equipped with a protective box (14). A robotic arm (12) is provided on the side of the material handling station (20) on the second track (16), and a suction cup (13) for removing the pressed workpiece is installed on the robotic arm (12).

8. A method of using a contact lens injection and pressing machine as described in any one of claims 1 to 7, characterized in that, Includes the following steps: The circular transport line (9) pushes the transport mold (100) loaded with the female mold to the liquid injection station (18) for liquid injection, and then pushes the transport mold (100) after liquid injection to the male mold loading station (19) for male mold loading. Then, the transport mold (100) after loading is pushed to the pressing station (21) for pressing operation. After pressing is completed, the transport mold (100) is pushed to the material removal station (20) to wait for the workpiece to be removed. After the material removal is completed, the empty transport mold (100) is pushed to the female mold loading station (17) to wait for the female mold to be loaded. The operation is repeated to realize the circular transport of the transport mold (100).

9. The method of using the contact lens injection and pressing machine according to claim 8, characterized in that, Specifically, the steps include the following: Two feeding machines (11) transport the female mold and the male mold to the female mold transmission line (2) and the male mold transmission line (8) respectively, and adjust the spacing between the female mold and the male mold through the adjusting component (10). When the female mold is being transported by the female mold transmission line (2), the cylinder (201) drives the pressure plate (202) to press against the female mold throughout the transmission process. Cylinder 1 (201) drives the pressure plate (202) to retract and reset. The loading module (3) transfers the female mold to the transport mold (100) on the female mold loading station (17) and transfers the male mold to the transport mold (100) on the male mold loading station (19), so that the male mold is engaged with the female mold after liquid injection. The male mold is flipped by the flipping mechanism (7) before being transferred. The circular transport line (9) pushes the transport mold (100) containing the female mold through the second pushing mechanism to move in the first track (15), and performs dust removal operation on the female mold through the dust removal component (4); The injection mechanism (6) injects liquid into the transport mold (100) on the injection station (18); The pushing mechanism pushes the transport mold (100) that has been injected with liquid at the injection station (18) to the male mold loading station (19) and waits for the male mold to be loaded, so that the male mold and the female mold are engaged. The circular transport line (9) pushes the transport mold (100) containing the male mold and female mold through the second pusher mechanism to move it to the pressing station (21) in the second track (16), so that the pressing mechanism (5) can press it; The pressed workpiece is pushed to the material handling station (20) by the second pushing mechanism, and waits to be picked up; After the robot (12) takes the workpiece from the material handling station (20), it pushes the empty transport mold (100) to the female mold loading station (17) through the pushing mechanism, waits for the female mold to be loaded, repeats the operation, and realizes the cyclic transport of the transport mold (100).

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