CN111619059A - Contact lens liquid injection forming machine and liquid injection forming method thereof - Google Patents

Abstract

A contact lens liquid injection molding machine and a liquid injection molding method thereof belong to the technical field of contact lens preparation, and include a support mechanism, an air filtration system disposed on the upper part of the support mechanism, a curing molding system disposed on one side of the support mechanism, and a support mechanism disposed inside the support mechanism. Concave mold feeding system, rotation control system, liquid injection system, convex mold pressing system and blanking system. Since the contact lens liquid injection molding machine needs each process to cooperate with the rotation control system for unified processing, in order to improve the work efficiency, the present invention improves some processes, reduces the processing time of some stations with more processing time, so as to improve the overall processing time. The processing efficiency has been improved, and the quality of injection molding has been further improved.

Description

Contact lens injection molding machine and injection molding method thereof

technical field

The invention belongs to the technical field of preparation of contact lenses, in particular to a liquid injection molding machine for contact lenses and a liquid injection molding method thereof.

Background technique

Today, with the popularization of electronic products and the change of modern work and entertainment methods, people's demand for work and entertainment equipment such as computers and mobile phones is increasing. Such equipment also has varying degrees of influence on people's eyesight, and vision problems have become A problem that most people need to face. With the appearance of vision problems, the number of people wearing glasses has gradually increased. Compared with traditional glasses, contact lenses are more concealed in appearance, avoiding the impact on the external image. Therefore, contact lenses are gradually accepted and favored by more and more people. .

In the past contact lens injection molding machine, the design of each process was unreasonable, which caused instability in the processing of the equipment. Because the processing speed of some processes was slower than that of other processes, the overall process was affected. processing speed, etc.

Therefore, there is an urgent need for a new technical solution in the prior art to solve this problem.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is: to provide a contact lens injection molding machine and a liquid injection molding method thereof to solve the unreasonable design of the contact lens injection molding machine in the prior art, and there are problems in the equipment processing process. Technical issues for unstable situations.

Contact lens liquid injection molding machine, including a support mechanism, an air filter system arranged on the upper part of the support mechanism, a curing molding system arranged on one side of the support mechanism, and a concave mold feeding system, a rotation control system, and a liquid injection system arranged inside the support mechanism. system, punch die pressing system and blanking system,

The air filter system is communicated with the inside of the support mechanism; the concave mold feeding system is connected with the rotation control system; the liquid injection head of the liquid injection system injects liquid into the concave mold on the rotation control system; the convex mold presses The closing system is pressed with the concave mold on the rotary control system; the blanking system transmits the concave mold on the rotary control system to the curing and forming system.

The concave mold feeding system includes a feeding tray, a concave mold dust removal base, a moving component of a grabbing dust removal device, a concave mold grabbing dust removal device, a feeding tray clamping jaw, a feeding slide rail and a feeding tray reclaiming jaw; The upper part of the feeding tray carries the concave mold, and the lower part of the feeding tray is slidably connected with the feeding slide rail; the side part of the feeding slide rail is sequentially arranged along the direction of the slide rail with the feeding tray clamping jaws, the concave mold dust removal base and the The feeding tray takes material clamping jaws; the moving component of the grabbing and dust removal device is fixedly connected with the concave mold grabbing and dust removal device, and the moving component of the grabbing and dust removal device is fixedly installed on one side of the concave mold dust removal base.

The rotation control system includes a rotating disk, a rotating disk power device and a mold operating station; the upper edge of the rotating disk is provided with a mold operating station, and the lower middle position of the rotating disk is rotatably connected with the rotating disk power device.

The liquid injection system includes a liquid injection pipe fixing mechanism, a liquid injection head, a liquid injection pump group and a liquid injection pipe moving mechanism; the upper part of the liquid injection pipe fixing mechanism is fixedly installed with the liquid injection pump group, and the liquid injection pipe fixing mechanism is installed. One side of the middle part is movably connected with the liquid injection pipe moving mechanism; the liquid injection head is fixedly connected with the liquid injection pipe moving mechanism, and the liquid injection head is connected with the liquid injection pipe of the liquid injection pump group.

The male mold pressing system includes a male mold separating device, a male mold conveying guide rail, a jacking cylinder, a male mold conveying and pressing device, and a male mold feeding vibration plate; the male mold feeding port of the male mold feeding vibration plate It is fixedly connected with the convex mold conveying guide rail; the upper part of the convex mold conveying guide rail is provided with a convex mold separating device; the convex mold conveying and pressing device is located above the convex mold separating device; the jacking cylinder is arranged on the convex mold conveying guide rail. Below, the blowing head that lifts the air cylinder is in one-to-one correspondence with the separation groove of the male mold separating device and the pressing head of the male mold conveying and pressing device, and the distances are the same.

The blanking system includes a front and rear moving device for blanking jaws, a left and right moving device for blanking jaws, a cylinder for blanking jaws and a blanking pick-up jaw; and the moving part I located at the lower part, the upper part of the fixed part I is fixedly connected with the support mechanism, and the lower part of the fixed part I is slidably connected with the moving part I through the slide; The upper part of the fixed part II is fixedly connected with the lower part of the moving part I, and the lower part of the fixed part II is slidably connected with the moving part II through the slideway; the upper part of the blanking jaw cylinder is connected with the moving part II. The lower part of the cylinder is fixedly connected, and the lower part of the blanking jaw cylinder is fixedly connected with the blanking and picking jaws.

The curing and forming system includes a conveyor belt, an oven and a receiving device, one end of the conveyor belt is connected with the blanking and picking jaws, the other end of the conveyor belt is connected with the receiving device, and the middle part of the conveyor belt runs through the lower part of the oven.

The liquid injection molding method of the contact lens liquid injection molding machine, using the contact lens liquid injection molding machine, comprises the following steps, and the following steps are carried out in sequence,

Step 1. Concave mold feeding

Fill the feeding tray with the concave mold and put it on the clamping jaws of the feeding tray. The feeding slide rail will transport the feeding tray to the station where the concave mold grabs the dust removal device, and the concave mold grabs the dust removal device to be processed. The mold is dedusted and the dedusted concave mold is grabbed and transported to the mold operation station on the rotary control system.

After all the concave molds on the feeding tray are transported, the empty feeding tray is transported by the feeding slide rail to the feeding tray reclaiming jaws for centralized collection;

Step 2. Injection of the concave mold

The concave mold is transported to the bottom of the liquid injection head of the liquid injection system, and the liquid injection pump group is used to perform liquid injection processing on the concave mold. The rotation control system rotates the injected concave mold to the convex mold pressing system;

Step 3. Press the convex mold and the concave mold

The convex die is arranged through the convex die feeding vibrating plate and then enters the convex die conveying guide rail. The convex die conveying rail blows air through the blowing pipe set on the convex die feeding vibrating plate to move the convex die to the designated position. The limit mechanism on the conveying guide rail is lowered to prevent the convex mold from being separated from the convex mold conveying guide rail during the blowing process. The convex mold separating device separates the convex mold into equal distances matched with the convex mold conveying and pressing device, and the convex mold conveys the pressing device. To carry out dust removal, transportation and pressing, the jacking cylinder under the rotary control system is lifted while the convex die is transported and pressed by the pressing device, so as to ensure the balance of the rotary control system;

Step 4. Material transfer

The rotary control system rotates the die combination processed by the convex die pressing system to the blanking system station. The left and right moving device moves the clamping mold combination to the conveyor belt of the curing and forming system and performs the curing and forming operation;

Step 5. Curing and molding

The mold combination enters through the conveyor belt of the curing molding system and is dried and formed through the oven box, and then enters the collection device through the conveyor belt for unified collection.

During the process of performing the steps 1 to 4, the air purification is continuously performed by the air filtration system.

The curing and forming system is a drying system, and the drying system includes a conveyor belt, an oven and a receiving device; in the step 4, the mold assembly obtained in the step 3 is blanked and transferred to the blanking system through the blanking system. on the conveyor belt of the curing molding system; in the step 5, the conveyor belt of the curing molding system transports the received mold assembly into the oven for heating and curing, and the cured mold assembly is collected by the receiving device; wherein , the conveyor belt carries the mold assembly from the head of the oven to the tail of the oven;

The concave mold feeding system includes a concave mold conveying device and a concave mold grabbing device that are connected, wherein the concave mold conveying device includes a feeding tray, a concave mold dust removal base, a feeding tray clamping jaw, and a feeding slide rail. and a feeding plate reclaiming jaw, the feeding slide rail is fixedly arranged on the support mechanism, and the concave mold grabbing device includes a grabbing dust removal device moving assembly and a concave mold grabbing dust removal device;

The liquid injection system includes a liquid injection pipe fixing mechanism, a liquid injection head, a liquid injection pump group and a liquid injection pipe moving mechanism, the liquid injection head is connected with the liquid injection pump group, and the liquid injection head is fixed by the liquid injection pipe fixing mechanism. , the liquid injection pipe moving mechanism is connected with the liquid injection pipe fixing mechanism, and drives the liquid injection head to move up and down;

The male mold pressing system includes a male mold separating device, a male mold conveying guide rail, a jacking cylinder, a male mold conveying and pressing device, and a male mold feeding vibration plate, wherein the male mold conveying guide rail is arranged on the male mold feeding. At the exit of the vibrating plate, the convex mold conveying guide rail is sleeved on the convex mold conveyor belt support structure, the convex mold conveyor belt support structure is connected with the support mechanism, and the convex mold separation device is connected with the convex mold conveyor belt support structure. connected, the convex mold conveying and pressing device is connected with the supporting mechanism;

The rotation control system includes a rotating disk, a rotating disk power device and a mold operation station, an operation panel is arranged on the rotating disk, and a mold operation station is arranged on the operation panel;

The blanking system includes a front and rear moving device for blanking jaws, a left and right moving device for blanking jaws, a cylinder for blanking jaws and a blanking pick-up jaw. In the lower part of the device, the front and rear moving device of the blanking jaw and the left and right moving device of the blanking jaw are linked to realize the front, back, left and right movement of the blanking and picking jaws, and the blanking jaw cylinder realizes the clamping and picking of the die combination by the blanking and picking jaws.

Through the above-mentioned design scheme, the present invention can bring the following beneficial effects:

Because the contact lens liquid injection molding machine needs each process to cooperate with the rotation control system for unified processing, in order to improve the work efficiency, the present invention improves some processes, reduces the processing time of some stations that take more time to process, so as to improve the overall efficiency. The processing efficiency has been improved, and the quality of injection molding has been further improved.

In the present invention, in order to improve the overall efficiency and quality, different from the past, the vibrating plate is not used for feeding the concave mold, but a mechanical structure composed of a feeding plate, a feeding slide rail, and a concave mold grabbing and dust removal device is adopted. As a brand-new concave mold feeding system, the feeding tray is transported to the station matched with the concave mold grabbing and dust removal device. On the rotation control system, and into the liquid injection system, the step of mold separation is omitted, and the operation time of this process is saved.

Different from the past, in the present invention, in order to simplify the process, improve the production efficiency, and reduce the working time when the convex mold and the concave mold are pressed together, the mold overturning process is cancelled as the mold transportation process, and the mold conveying and pressing device is used to uniformly carry out dust removal and pressing. In order to achieve the purpose of improving production efficiency and reducing operating time.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

Fig. 1 is the structural representation of the contact lens liquid injection molding machine among the present invention;

2 is a schematic diagram of the internal structure of the support mechanism of the contact lens injection molding machine in the present invention;

Fig. 3 is the partial structural representation of the concave mold feeding system of the contact lens liquid injection molding machine in the present invention;

Fig. 4 is the partial structure schematic diagram of the liquid injection system of the contact lens liquid injection molding machine in the present invention;

Fig. 5 is the partial structure schematic diagram of the convex mold pressing system of the contact lens liquid injection molding machine in the present invention;

Fig. 6 is the partial structural representation of the blanking system of the contact lens liquid injection molding machine in the present invention;

Fig. 7 is the partial structure schematic diagram of the rotation control system of the contact lens liquid injection molding machine in the present invention;

FIG. 8 is a partial structural schematic diagram of the curing molding system of the contact lens liquid injection molding machine in the present invention.

In the figure, 1-support mechanism, 2-air filter system, 3-curing molding system, 301-oven, 302-conveyor belt, 303-receiving device, 4-concave mold feeding system, 401-feeding tray, 402-concave Die dust removal base, 403-moving component of grabbing dust removal device, 404-concave mold grabbing dust removal device, 405-feeding tray gripper, 406-feeding slide rail, 407-feeder tray reclaiming jaw, 5-rotation Control system, 501-rotating disc, 502-rotating disc power unit, 503-mould operation station, 6-liquid injection system, 601-liquid injection pipe fixing mechanism, 602-liquid injection head, 603-liquid injection pump set, 604 - Liquid injection pipe moving mechanism, 7- Convex mold pressing system, 701- Convex mold separation device, 702- Convex mold conveying guide rail, 703- Elevating cylinder, 704- Convex mold conveying and pressing device, 705- Convex mold feeding Vibrating plate, 8-feeding system, 801-feeding jaw moving device forward and backward, 802-feeding jaw moving device left and right, 803-feeding jaw cylinder, 804-feeding pick-up jaw.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments, but the protection scope of the present invention is not limited by the embodiments and is not limited thereto. In addition, well-known components, circuits, methods of use, etc. have not been described in detail in order to avoid unnecessarily obscuring the essence of the present invention.

As shown in the figure, the contact lens injection molding machine includes a support mechanism 1, an air filter system 2 arranged on the upper part of the support mechanism, a curing molding system 3 arranged on one side of the support mechanism 1, and a concave mold arranged inside the support mechanism 1. Feeding system 4, rotation control system 5, liquid injection system 6, convex die pressing system 7 and blanking system 8,

The air filter system 2 is communicated with the interior of the support mechanism 1; the concave mold feeding system 4 is connected with the rotation control system 5; the liquid injection head of the liquid injection system 6 injects liquid into the concave mold on the rotation control system 5 ; The male mold pressing system 7 is pressed with the concave mold on the rotary control system 5 ;

The concave mold feeding system 4 includes a feeding tray 401, a concave mold dust removal base 402, a moving assembly 403 for a grabbing and dust removal device, a concave mold grabbing and dust removal device 404, a feeding tray clamping jaw 405, a feeding slide rail 406 and a feeder. The feeding tray reclaiming jaw 407; the upper part of the feeding tray 401 carries the concave mold, and the lower part of the feeding tray 401 is slidably connected with the feeding slide rail 406; the side parts of the feeding slide rail 406 are in sequence along the direction of the slide rail Arrange the feeding tray clamping jaw 405, the concave mold dust removal base 402 and the feeding tray reclaiming jaw 407; the grabbing dust removal device moving component 403 is fixedly connected with the concave mold grabbing dust removal device 404, and the grabbing dust removal device moving component 403 It is fixedly installed on one side of the concave mold dust removal base 402 .

The rotating control system 5 includes a rotating disk 501, a rotating disk power device 502 and a mold operating station 503; the upper edge of the rotating disk 501 is provided with a mold operating station 503, and the lower middle position of the rotating disk 501 is connected to the rotating disk power. Device 502 is rotatably connected.

The liquid injection system 6 includes a liquid injection pipe fixing mechanism 601, a liquid injection head 602, a liquid injection pump group 603 and a liquid injection pipe moving mechanism 604; the upper part of the liquid injection pipe fixing mechanism 601 is fixedly installed with the liquid injection pump group 603 , the middle side of the liquid injection pipe fixing mechanism 601 is movably connected with the liquid injection pipe moving mechanism 604; the liquid injection head 602 is fixedly connected with the liquid injection pipe moving mechanism 604, and the liquid injection head 602 and the liquid injection pump group 603 Tube connection.

The male mold pressing system 7 includes a male mold separating device 701, a male mold conveying guide rail 702, a jacking cylinder 703, a male mold conveying and pressing device 704 and a male mold feeding vibration plate 705; the male mold feeding vibration plate The male mold feeding port 705 is fixedly connected with the male mold conveying guide rail 702; the upper part of the male mold conveying guide rail 702 is provided with a male mold separating device 701; the male mold conveying and pressing device 704 is located above the male mold separating device 701 The lifting cylinder 703 is arranged below the convex mold conveying guide rail 702, and the blowing head of the jacking cylinder 703 corresponds to the separation groove of the convex mold separating device 701 and the pressing head of the convex mold conveying and pressing device 704 and is in one-to-one correspondence. The spacing is the same.

The blanking system 8 includes a front and rear moving device 801 for blanking jaws, a left and right movement device 802 for blanking jaws, a cylinder 803 for blanking jaws, and a blanking pick-up jaw 804; the front and rear movement device 801 for blanking jaws includes The fixed part I located at the upper part and the movable part I located at the lower part, the upper part of the fixed part I is fixedly connected with the support mechanism 1, and the lower part of the fixed part I is slidably connected with the moving part I through the slide; 802 includes a fixed part II located at the upper part and a moving part II located at the lower part, the upper part of the fixed part II is fixedly connected with the lower part of the moving part I, and the lower part of the fixed part II is slidably connected with the moving part II through the slideway; The upper part of the claw cylinder 803 is fixedly connected with the lower part of the moving part II, and the lower part of the blanking gripper cylinder 803 is fixedly connected with the blanking and picking-up gripper 804 .

The curing and forming system 3 includes a conveyor belt 302, an oven 301 and a receiving device 303. One end of the conveyor belt 302 is connected to the blanking and picking jaws 804, the other end of the conveyor belt 302 is connected to the receiving device 303, and the middle of the conveyor belt 302 runs through the oven. The lower part of the 301.

The liquid injection molding method of the contact lens liquid injection molding machine, using the contact lens liquid injection molding machine, comprises the following steps, and the following steps are performed in sequence,

Step 1. Concave mold feeding

The feeding tray 401 is filled with the concave mold and placed on the feeding tray clamping jaw 405. The feeding slide rail 406 transports the feeding tray 401 to the station where the concave mold grabbing and dust removal device 404 is located, and is grabbed by the concave mold. The dust removal device 404 removes dust from the concave mold to be processed, grabs and transports the dust-removed concave mold to the mold operation station 503 on the rotation control system 5, and the rotation control system 5 rotates to transport the dust-removed concave mold to the liquid injection system. 6 to inject liquid under the liquid injection head 602,

After all the concave molds on the feeding tray 401 are transported, the empty feeding tray 401 is transported by the feeding slide rail 406 to the feeding tray reclaiming jaws 407 for centralized collection;

Step 2. Injection of the concave mold

The concave mold is transported to the bottom of the liquid injection head 602 of the liquid injection system 6, and the liquid injection pump group 603 is used to perform liquid injection processing on the concave mold. Pressing system 7;

Step 3. Press the convex mold and the concave mold

After the rotary control system 5 transports the concave mold processed by the liquid injection system 6 to the convex mold pressing system, the convex mold is arranged through the convex mold feeding vibration plate 705 and then enters the convex mold conveying guide 702, and the convex mold conveying guide 702 passes through. The blowing pipe set in the male mold feeding vibration plate 705 blows air, moves the male mold to a designated position, and at the same time lowers the limit mechanism on the male mold conveying guide rail 702 to prevent the male mold from separating from the male mold during the blowing process. The conveying guide rail 702, the male mold is separated by the male mold separating device 701 into equal intervals matched with the male mold conveying and pressing device 704. After the male mold is separated by the male mold separating device 701, the male mold is transported and pressed by the pressing device 704. For dust removal, transportation and pressing, the jacking cylinder 703 under the rotation control system 5 will be lifted while pressing down to ensure the balance of the rotation control system 5 when the male mold transportation and pressing device 704 is pressed and pressed;

Step 4. Material transfer

The rotation control system 5 rotates the die combination processed by the convex die pressing system 7 to the station of the blanking system 8, and the blanking pick-up jaw 804 clamps the processed die combination, and moves the device 801 back and forth through the blanking jaw. and the left and right moving device 802 of the blanking jaws to move the blanking and picking jaws 804 of the clamping die assembly to the conveyor belt of the curing and forming system 3 and perform the curing and forming operation;

Step 5. Curing and molding

After the unloading system 8 clamps and transports the mold assembly to the conveyor belt of the curing molding system 3, the mold assembly enters through the conveyor belt of the curing molding system 3 and passes through the oven box, and is dried and formed through the oven box mold combination, and then passes through the mold assembly. The conveyor belt enters the collection device for unified collection.

During the process of performing the steps 1 to 4, the air purification is continuously performed by the air filtration system 2 .

The curing and forming system 3 is a drying system, and the drying system includes a conveyor belt 302, an oven 301 and a receiving device 303; in the fourth step, the mold assembly obtained in the third step is processed by the blanking system 8 The material is transferred to the conveyor belt 302 of the curing molding system 3; in the step 5, the conveyor belt 302 of the curing molding system 3 transports the received mold assembly into the oven 301 for heating and curing, and the mold after curing is cured. The assembly is collected by the receiving device 303; wherein, the conveyor belt carries the mold assembly from the head of the oven 301 to the tail of the oven 301;

The concave mold feeding system 4 includes a concave mold conveying device and a concave mold grabbing device, wherein the concave mold conveying device includes a feeding tray 401, a concave mold dust removal base 402, a feeding tray clamping jaw 405, The feeding slide rail 406 and the feeding tray reclaiming gripper 407 are fixed on the support mechanism 1, and the concave mold grabbing device includes a grabbing dust removal device moving assembly 403 and a concave mold grabbing device Dust removal device 404;

The liquid injection system 6 includes a liquid injection pipe fixing mechanism 601, a liquid injection head 602, a liquid injection pump group 603 and a liquid injection pipe moving mechanism 604. The liquid injection head 602 is connected to the liquid injection pump group 603. The liquid injection head 602 It is fixed by the liquid injection pipe fixing mechanism 601, and the liquid injection pipe moving mechanism 604 is connected with the liquid injection pipe fixing mechanism 601 to drive the liquid injection head 602 to move up and down;

The male mold pressing system 7 includes a male mold separating device 701, a male mold conveying guide 702, a jacking cylinder 703, a male mold conveying and pressing device 704, and a male mold feeding vibration plate 705, wherein the male mold conveying guide rail 705. 702 is arranged at the exit of the punching die feeding vibrating plate 705, and the punching die conveying guide rail 702 is sleeved on the supporting structure of the punching die conveyor belt, the supporting structure of the punching die conveyor belt is connected with the supporting mechanism 1, and the punching die is separated. The device 701 is connected to the support structure of the convex mold conveyor belt, and the convex mold conveying and pressing device 704 is connected to the support mechanism 1;

The rotation control system 5 includes a rotating disk 501, a rotating disk power device 502 and a mold operation station 503, an operation panel is arranged on the rotating disk 501, and a mold operation station 503 is arranged on the operation panel;

The blanking system 8 includes a front and rear moving device 801 for blanking jaws, a left and right moving device 802 for blanking jaws, a cylinder 803 for blanking jaws, and a blanking pick-up jaw 804. The left and right moving means 802 for blanking jaws is fixed. At the lower part of the front and rear moving device 801 of the blanking jaw, the front and rear moving device 801 of the blanking jaw and the left and right moving device 802 of the blanking jaw are linked to realize the front, back, left and right movement of the blanking and picking jaw 804, and the blanking jaw cylinder 803 realizes blanking The pick-up jaw 804 picks up the clamping of the die set. In the present invention, in order to improve the overall efficiency and quality, different from the past, the vibrating plate is not used for feeding the concave mold, but a feeding plate 401, a feeding slide rail 406, and a concave mold grabbing and dust removal device 404 are used. The mechanical structure is as a new concave mold feeding system 4. The feeding tray 401, the feeding slide rail 406, and the concave mold grabbing and dust removal device 404 work together. The feeding tray 401 carries the mold, and the feeding slide rail 406 and the feeding The tray 401 is connected, and the feeding tray 401 is transported to the station that cooperates with the concave mold grabbing and dust removal device 404, and after the feeding is completed, the feeding tray 401 is transported to the feeding tray. The material tray is collected, and the concave mold grabbing and dust removal device 404 removes dust from the mold to be processed after the feeding tray 401 enters the matching station, and transports the dust-removed concave mold to the rotation control system 5 and enters the liquid injection system 6 , eliminating the step of mold separation, thereby saving the operation time of this process.

In the present invention, in the pressing of the male mold and the female mold, the male mold pressing system 7 consists of a male mold separating device 701, a male mold conveying guide rail 702, a jacking cylinder 703, a male mold conveying and pressing device 704, and a convex mold pressing device 704. The die feeding vibration plate 705 is composed of the convex die feeding vibrating plate 705 and the convex die conveying guide rail 702 to form the convex die conveying device. The male mold is arranged through the male mold feeding vibrating plate 705 and then enters the male mold conveying guide rail 702. The male mold conveying rail 702 blows air through the blowing pipe to move the male mold to the designated position, and at the same time, the limit on the male mold conveying guide rail 702 is moved. The position mechanism is lowered, and during the blowing process, the male mold is blown away from the male mold conveying guide rail 702 and moved to a designated position due to the blowing of the blowing pipe, and the male mold is separated by the male mold separation device 701. The devices 704 are matched at equal distances. After the male mold is separated by the male mold separating device 701, the male mold conveying and pressing device 704 performs dust removal, transportation and pressing. The jack-up cylinder 703 under 5 will be jacked up at the same time as the downward pressure, so as to ensure the balance of the rotation control system 5 . Different from the past, in the present invention, in order to simplify the process, improve the production efficiency, and reduce the working time when the convex mold and the concave mold are pressed together, the mold overturning process is cancelled as the mold transportation process, and the mold conveying and pressing device is used to uniformly carry out dust removal and pressing. In order to achieve the purpose of improving production efficiency and reducing operating time.

Claims (10)

1. The liquid injection molding machine for the contact lenses is characterized in that: comprises a supporting mechanism (1), an air filtering system (2) arranged at the upper part of the supporting mechanism, a curing and forming system (3) arranged at one side of the supporting mechanism (1), a female mould feeding system (4), a rotation control system (5), a liquid injection system (6), a male mould pressing system (7) and a blanking system (8) which are arranged in the supporting mechanism (1),

the air filtering system (2) is communicated with the inside of the supporting mechanism (1); the female die feeding system (4) is connected with the rotary control system (5); the liquid injection head of the liquid injection system (6) injects liquid into the female die on the rotary control system (5); the male die pressing system (7) is pressed with the female die on the rotary control system (5); and the blanking system (8) transmits the female die on the rotary control system (5) to the curing and forming system (3).

2. The contact lens injection molding machine of claim 1, wherein: the female die feeding system (4) comprises a feeding disc (401), a female die dust removal base (402), a grabbing dust removal device moving assembly (403), a female die grabbing dust removal device (404), a feeding disc clamping jaw (405), a feeding slide rail (406) and a feeding disc taking clamping jaw (407); the upper part of the feeding disc (401) bears the female die, and the lower part of the feeding disc (401) is connected with a feeding slide rail (406) in a sliding manner; the side part of the feeding slide rail (406) is sequentially provided with a feeding disc clamping jaw (405), a female die dust removal base (402) and a feeding disc taking clamping jaw (407) along the slide rail direction; the grabbing and dust removing device moving assembly (403) is fixedly connected with the female die grabbing and dust removing device (404), and the grabbing and dust removing device moving assembly (403) is fixedly installed on one side of the female die dust removing base (402).

3. The contact lens injection molding machine of claim 1, wherein: the rotary control system (5) comprises a rotary disc (501), a rotary disc power device (502) and a mould operation station (503); the die operation station (503) is arranged on the upper edge of the rotating disc (501), and the middle position of the lower part of the rotating disc (501) is rotationally connected with the rotating disc power device (502).

4. The contact lens injection molding machine of claim 1, wherein: the liquid injection system (6) comprises a liquid injection pipe fixing mechanism (601), a liquid injection head (602), a liquid injection pump set (603) and a liquid injection pipe moving mechanism (604); the upper part of the liquid injection pipe fixing mechanism (601) is fixedly arranged with a liquid injection pump set (603), and one side of the middle part of the liquid injection pipe fixing mechanism (601) is movably connected with a liquid injection pipe moving mechanism (604); the liquid injection head (602) is fixedly connected with the liquid injection pipe moving mechanism (604), and the liquid injection head (602) is connected with the liquid injection pipe of the liquid injection pump group (603).

5. The contact lens injection molding machine of claim 1, wherein: the male die pressing system (7) comprises a male die separating device (701), a male die conveying guide rail (702), a jacking air cylinder (703), a male die conveying pressing device (704) and a male die feeding vibration disc (705); a male die feeding port of the male die feeding vibration disc (705) is fixedly connected with a male die conveying guide rail (702); a male die separating device (701) is arranged at the upper part of the male die conveying guide rail (702); the male die conveying and pressing device (704) is positioned above the male die separating device (701); the jacking cylinder (703) is arranged below the male die conveying guide rail (702), and the blowing head of the jacking cylinder (703) corresponds to the separation groove of the male die separation device (701) and the pressing head of the male die conveying pressing device (704) in a one-to-one mode and has the same distance.

6. The contact lens injection molding machine of claim 1, wherein: the blanking system (8) comprises a blanking clamping jaw front-and-back moving device (801), a blanking clamping jaw left-and-right moving device (802), a blanking clamping jaw cylinder (803) and a blanking picking clamping jaw (804); the blanking clamping jaw front-and-back moving device (801) comprises a fixing piece I positioned at the upper part and a moving piece I positioned at the lower part, the upper part of the fixing piece I is fixedly connected with the supporting mechanism (1), and the lower part of the fixing piece I is in sliding connection with the moving piece I through a slideway; the blanking clamping jaw left-right moving device (802) comprises a fixed piece II positioned at the upper part and a moving piece II positioned at the lower part, the upper part of the fixed piece II is fixedly connected with the lower part of the moving piece I, and the lower part of the fixed piece II is in sliding connection with the moving piece II through a slide way; the upper part of the blanking clamping jaw cylinder (803) is fixedly connected with the lower part of the moving piece II, and the lower part of the blanking clamping jaw cylinder (803) is fixedly connected with the blanking picking clamping jaw (804).

7. The contact lens injection molding machine of claim 1, wherein: the curing and forming system (3) comprises a conveyor belt (302), an oven (301) and a receiving device (303), one end of the conveyor belt (302) is connected with a blanking picking clamping jaw (804), the other end of the conveyor belt (302) is connected with the receiving device (303), and the middle of the conveyor belt (302) penetrates through the lower portion of the oven (301).

8. The method for injection molding a contact lens injection molding machine according to claim 1, wherein: comprises the following steps which are sequentially carried out,

step one, feeding the female die

After filling the female die with the feeding disc (401), putting the feeding disc on a feeding disc clamping jaw (405), conveying the feeding disc (401) to a station where a female die grabbing and dust removing device (404) is located by a feeding slide rail (406), carrying out dust removal on the female die to be processed by the female die grabbing and dust removing device (404), grabbing and conveying the dust-removed female die to a die operation station (503) on a rotary control system (5), rotating the rotary control system (5) to convey the dust-removed female die to the position below a liquid injection head (602) of a liquid injection system (6) for injection,

after all the female dies on the feeding disc (401) are conveyed, the empty feeding disc (401) is conveyed to a feeding disc material taking clamping jaw (407) by a feeding slide rail (406) to be collected in a centralized way;

step two, injecting liquid into the female die

The female die is conveyed to the lower part of a liquid injection head (602) of a liquid injection system (6), liquid injection processing is carried out on the female die through a liquid injection pump set (603), and the female die after liquid injection is rotated to a male die pressing system (7) by a rotation control system (5);

step three, pressing the male die and the female die

The male dies enter a male die conveying guide rail (702) after being arranged through a male die feeding vibration disc (705), the male die conveying guide rail (702) blows air through an air blowing pipe arranged in the male die feeding vibration disc (705), the male dies are moved to a specified position, meanwhile, a limiting mechanism on the male die conveying guide rail (702) is lowered to prevent the male dies from being separated from the male die conveying guide rail (702) in the air blowing process, a male die separating device (701) separates the male dies into equal intervals matched with a male die conveying pressing device (704), the male die conveying pressing device (704) removes dust, conveys and presses, and a jacking cylinder (703) below a rotary control system (5) jacks up when the male die conveying pressing device (704) presses, so that the balance of the rotary control system (5) is guaranteed;

step four, blanking transfer

The rotary control system (5) rotates the die combination processed by the male die pressing system (7) to a station of the blanking system (8), the blanking pickup clamping jaw (804) clamps the processed die combination, and the clamping die combination is moved to a conveying belt of the curing and forming system (3) through the blanking clamping jaw front-and-back moving device (801) and the blanking clamping jaw left-and-right moving device (802) and is subjected to curing and forming operation;

step five, curing and forming

The mould combination gets into and through oven box stoving shaping via the conveyer belt of solidification molding system (3), and rethread conveyer belt gets into collection device and collects in unison.

9. The injection molding method for a contact lens injection molding machine according to claim 8, wherein: during the steps one to four, air purification is continuously performed by the air filtration system (2).

10. The injection molding method for a contact lens injection molding machine according to claim 8, wherein: the curing and forming system (3) is a drying system, and the drying system comprises a conveyor belt, an oven and a receiving device; in the fourth step, the die assembly obtained in the third step is discharged and transferred onto a conveyor belt of a curing and forming system (3) through a discharging system (8); in the fifth step, a conveyor belt of the curing and molding system (3) conveys the received mold assembly into the oven for heating and curing, and the cured and molded mold assembly is collected by the receiving device; wherein the conveyor belt carries the mold assembly to pass from the head of the oven to the tail of the oven;

the female die feeding system (4) comprises a female die conveying device and a female die gripping device which are connected, wherein the female die conveying device comprises a feeding disc (401), a female die dust removing base (402), a feeding disc clamping jaw (405), a feeding slide rail (406) and a feeding disc taking clamping jaw (407), the feeding slide rail (406) is fixedly arranged on the supporting mechanism (1), and the female die gripping device comprises a gripping dust removing device moving assembly (403) and a female die gripping dust removing device (404);

the liquid injection system (6) comprises a liquid injection pipe fixing mechanism (601), a liquid injection head (602), a liquid injection pump set (603) and a liquid injection pipe moving mechanism (604), wherein the liquid injection head (602) is connected with the liquid injection pump set (603), the liquid injection head (602) is fixed through the liquid injection pipe fixing mechanism (601), and the liquid injection pipe moving mechanism (604) is connected with the liquid injection pipe fixing mechanism (601) and drives the liquid injection head (602) to move up and down;

the male die pressing system (7) comprises a male die separating device (701), a male die conveying guide rail (702), a jacking air cylinder (703), a male die conveying pressing device (704) and a male die feeding vibration disc (705), wherein the male die conveying guide rail (702) is arranged at an outlet of the male die feeding vibration disc (705), the male die conveying guide rail (702) is sleeved on a male die conveying belt supporting structure, the male die conveying belt supporting structure is connected with a supporting mechanism (1), the male die separating device (701) is connected with the male die conveying belt supporting structure, and the male die conveying pressing device (704) is connected with the supporting mechanism (1);

the rotary control system (5) comprises a rotary disc (501), a rotary disc power device (502) and a mould operation station (503), wherein an operation plate is arranged on the rotary disc (501), and the mould operation station (503) is arranged on the operation plate;

the blanking system (8) comprises a blanking clamping jaw front-and-back moving device (801), a blanking clamping jaw left-and-right moving device (802), a blanking clamping jaw air cylinder (803) and a blanking picking clamping jaw (804), wherein the blanking clamping jaw left-and-right moving device (802) is fixed at the lower part of the blanking clamping jaw front-and-back moving device (801), the blanking clamping jaw front-and-back moving device (801) and the blanking clamping jaw left-and-right moving device (802) are linked to realize front-and-back and left-and-right moving of the blanking picking clamping jaw (804), and the blanking clamping jaw air cylinder (803.

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