Automatic demolding device for multi-station contact lens production

Abstract

The utility model relates to the field of automatic demolding devices, in particular to an automatic demolding device for multi-station contact lens production. The automatic demolding device aims at solving the technical problems that in the prior art, lenses cannot be protected during demolding, and the production efficiency is not ideal. The utility model discloses an automatic demolding device for multi-station contact lens production. The automatic demolding device comprises a mold table, an injection pipe and a control assembly, the purpose of switching the demolding assembly and the upper mold is achieved through the control assembly, multi-station contact lenses can be rapidly formed, and the contact lenses can be gently and synchronously taken out from the multiple stations of the lower mold in a negative pressure adsorption mode and transferred to the area of the discharging assembly, so that the contact lenses are conveniently and rapidly formed. Scratch, deformation or other damage possibly caused by a traditional mode is avoided, rows of contact lenses are driven by the discharging assembly to be discharged in order, a worker can conveniently and rapidly detach the contact lenses and the containing disc and transfer the contact lenses and the containing disc to the next process, the production efficiency is improved, and manual intervention is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automatic demoulding devices, in particular to an automatic demoulding device for producing multi-station contact lenses. Background Art

[0002] Contact lenses are lenses that are worn on the cornea of ​​the eye to correct vision or protect the eyes. Compression molding is the most commonly used process. During manufacturing, the molten composite material is injected into the mold, and the liquid composite material is cooled and formed into a solid lens in the mold. The upper mold of the mold is then opened and the lens can be taken out.

[0003] However, the existing automatic demoulding devices mainly use vibration or vibration devices to help the material loosen from the mold surface. However, this automatic demoulding method will cause friction between the mold and the lens during the process of driving the mold to vibrate, which may cause scratches and damage to the lens. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an automatic demoulding device for multi-station contact lens production, which aims to solve the technical problems of the prior art that the lenses cannot be protected during demoulding and the production efficiency is not ideal.

[0005] The technical scheme of the utility model is: an automatic demoulding device for multi-station contact lens production, comprising a mold table, an injection tube, a control component, an upper mold, a demoulding component, and a blanking component; the left end of the lower mold of the mold table is provided with equidistantly distributed injection tubes; the right end of the lower mold of the mold table is provided with a control component; the left end of the control component is fixedly connected to the upper mold; the right end of the control component is fixedly connected to the demoulding component for gently taking out the contact lenses from the multiple stations of the lower mold synchronously; the right end of the mold table is installed with a blanking component for orderly blanking the contact lenses.

[0006] Preferably, in the first step, the preheated material is injected into the closed upper mold and lower mold through the injection tube; in the second step, after the multi-station contact lens in the mold table is formed, the control component controls the upper mold to rise and rotate to the other side, and at the same time, the demolding component rotates to the top of the mold table; in the third step, the control component controls the demolding component to descend, and the demolding component gently takes out the contact lens from the multi-station of the lower mold synchronously and transfers it to the unloading component area; in the fourth step, the unloading component drives rows of contact lenses to be unloaded in an orderly manner.

[0007] Preferably, the control component includes a rotating motor, a transmission member, a support column, a linear drive mechanism and a movable seat; a transmission member is provided at the upper end of the output shaft of the rotating motor; the rotating motor controls the support column to rotate through the transmission member, so as to achieve the purpose of switching the demolding component and the upper mold function.

[0008] Preferably, a support column is fixedly connected to the upper end of the transmission member linkage shaft; a linear drive mechanism for controlling the lifting and lowering of the upper mold and the demolding assembly is installed on the inner side of the support column; the linear drive mechanism is fixedly connected to the upper mold and the demolding assembly through a movable seat; the linear drive mechanism controls the lifting and lowering of the upper mold and the demolding assembly through a movable seat.

[0009] Preferably, the demolding assembly includes a mounting plate, a negative pressure device and a negative pressure head group; the negative pressure device is installed on the upper end of the mounting plate; the negative pressure head group is installed at an equidistant distribution at the lower end of the negative pressure device; when the negative pressure device is started, negative pressure can be generated by the negative pressure head group, thereby adsorbing the contact lens and gently removing the contact lens from the multiple stations of the lower mold synchronously.

[0010] Preferably, the unloading assembly includes a transmission belt, a fixed seat, a placement plate, a magnetic surface A and a magnetic surface B; the fixed seats are evenly distributed on the outer surface of the transmission belt; the staff puts the placement plate into the fixed seat, and uses the magnetic surface A and the magnetic surface B to tightly adsorb the two, and the fixed seat moves with the transmission belt.

[0011] Preferably, a placement plate is embedded and connected on the inner side of the fixed seat; a magnetic surface A is provided at the lower end of the placement plate; a magnetic surface B is provided on the inner side of the fixed seat; the magnetic surface B is adsorbed and connected to the magnetic surface A, and when the placement plate receives the contact lens, as the transmission belt moves to the tail end, the staff can easily and quickly remove the contact lens and the placement plate and transfer them to the next process.

[0012] Beneficial effects of the utility model:

[0013] The utility model achieves the purpose of switching the demoulding component and the upper mold function through the control component, which can not only quickly form multi-station contact lenses, but also gently take out the contact lenses from the multiple stations of the lower mold synchronously by negative pressure adsorption, and transfer them to the unloading component area, avoiding scratches, deformation or other damages that may be caused by traditional methods. The unloading component drives rows of contact lenses to be unloaded in an orderly manner. The staff can easily and quickly disassemble the contact lenses and the placement trays and transfer them to the next process, thereby improving production efficiency and reducing manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The three-dimensional structure schematic diagram of the automatic demoulding device of the utility model is shown;

[0015] Figure 2 Another three-dimensional structural schematic diagram of the automatic demoulding device of the utility model is shown;

[0016] Figure 3 The diagram shows a partially enlarged schematic diagram of the automatic demoulding device of the utility model;

[0017] Figure 4 What is shown is a schematic diagram of the disassembled structure of the blanking component of the automatic demoulding device of the utility model.

[0018] Explanation of the reference numerals: 1. mold table; 2. injection tube; 3. control assembly; 301. rotating motor; 302. transmission member; 303. support column; 304. linear drive mechanism; 305. moving seat; 4. upper mold; 5. demoulding assembly; 501. mounting plate; 502. negative pressure device; 503. negative pressure head group; 6. unloading assembly; 601. transmission belt; 602. fixed seat; 603. placement plate; 604. magnetic surface A; 605. magnetic surface B. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] See also Figure 1 The utility model provides an embodiment: an automatic demoulding device for multi-station contact lens production, comprising a mold table 1, an injection tube 2, a control component 3, an upper mold 4, a demoulding component 5, and a blanking component 6; the left end of the lower mold of the mold table 1 is provided with equidistantly distributed injection tubes 2; the right end of the lower mold of the mold table 1 is provided with a control component 3; the left end of the control component 3 is fixedly connected to the upper mold 4; the right end of the control component 3 is fixedly connected to the demoulding component 5 for gently taking out the contact lens from the multiple stations of the lower mold synchronously; the right end of the mold table 1 is installed with a blanking component 6 for orderly blanking the contact lens.

[0021] See also Figure 2-3 In this embodiment, the control component 3 includes a rotating motor 301, a transmission member 302, a support column 303, a linear drive mechanism 304 and a moving seat 305; the upper end of the output shaft of the rotating motor 301 is provided with a transmission member 302; the rotating motor 301 controls the support column 303 to rotate through the transmission member 302 to achieve the purpose of switching the functions of the demoulding component 5 and the upper mold 4, and the upper end of the linkage shaft of the transmission member 302 is fixedly connected with the support column 303; the inner side of the support column 303 is installed with a linear drive mechanism 304 for controlling the upper mold 4 and the demoulding component 5 to rise and fall; the linear drive mechanism 304 and the upper mold 4. The demoulding components 5 are fixedly connected through a moving seat 305; the linear drive mechanism 304 and the upper mold 4 and the demoulding component 5 are controlled to rise and fall through the moving seat 305. The demoulding component 5 includes a mounting plate 501, a negative pressure device 502 and a negative pressure head group 503; the negative pressure device 502 is installed on the upper end of the mounting plate 501; the negative pressure head group 503 is equidistantly distributed on the lower end of the negative pressure device 502; when the negative pressure device 502 is started, negative pressure can be generated through the negative pressure head group 503, thereby adsorbing the contact lens, and gently taking the contact lens out from the multiple stations of the lower mold synchronously.

[0022] See also Figure 4 In this embodiment, the unloading component 6 includes a transmission belt 601, a fixed seat 602, a placement plate 603, a magnetic A surface 604 and a magnetic B surface 605; the outer surface of the transmission belt 601 is equidistantly distributed with fixed seats 602; the staff puts the placement plate 603 into the fixed seat 602, and uses the magnetic A surface 604 and the magnetic B surface 605 to tightly adsorb the two, and the fixed seat 602 moves with the transmission belt 601, and the placement plate 603 is embedded and connected on the inner side of the fixed seat 602; the lower end of the placement plate 603 is provided with a magnetic A surface 604; the inner side of the fixed seat 602 is provided with a magnetic B surface 605; the magnetic B surface 605 is adsorbed and connected with the magnetic A surface 604, when the placement plate 603 receives the contact lens, as the transmission belt 601 moves to the tail end, the staff can easily and quickly remove the contact lens and the placement plate 603 and transport them to the next process.

[0023] During operation, in the first step, the preheated material is injected into the closed upper mold 4 and the lower mold through the injection pipe 2.

[0024] In the second step, after the multi-station contact lens is formed in the mold table 1, the control component 3 controls the upper mold 4 to rise and rotate to the other side. At the same time, the demoulding component 5 rotates to the top of the mold table 1.

[0025] The linear drive mechanism 304 and the upper mold 4 and the demolding assembly 5 are controlled to rise and fall through the moving seat 305, and the rotating motor 301 controls the support column 303 to rotate through the transmission member 302, so as to achieve the purpose of switching the functions of the demolding assembly 5 and the upper mold 4.

[0026] In the third step, the control component 3 controls the demoulding component 5 to descend. When the negative pressure device 502 of the demoulding component 5 is started, negative pressure can be generated through the negative pressure head group 503, thereby adsorbing the contact lens, gently taking the contact lens out from the multiple stations of the lower mold synchronously, and transporting it to the unloading component 6 area.

[0027] In the fourth step, the staff puts the placement tray 603 into the fixed seat 602, and uses the magnetic surface A 604 and the magnetic surface B 605 to tightly adsorb the two. The fixed seat 602 moves with the transmission belt 601. When the placement tray 603 receives the contact lens, it moves to the end with the transmission belt 601. The staff can easily and quickly remove the contact lens and the placement tray 603 and transfer them to the next process.

[0028] Through the above steps, the purpose of switching the functions of the demoulding component 5 and the upper mold 4 is achieved through the control component 3, which can not only quickly form the multi-station contact lenses, but also gently take out the contact lenses from the multiple stations of the lower mold by negative pressure adsorption, and transfer them to the unloading component 6 area, avoiding scratches, deformation or other damages that may be caused by traditional methods. The unloading component 6 drives rows of contact lenses to be unloaded in an orderly manner. The staff can easily and quickly disassemble the contact lenses and the placement tray 603 and transfer them to the next process, which greatly improves the production efficiency of contact lenses.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. An automatic demoulding device for multi-station contact lens production, comprising a mold table (1); characterized in that: The invention also comprises an injection pipe (2), a control component (3), an upper mold (4), a demoulding component (5), and a material discharge component (6); the left end of the lower mold of the mold platform (1) is provided with injection pipes (2) distributed at equal distances; the right end of the lower mold of the mold platform (1) is provided with a control component (3); the left end of the control component (3) is fixedly connected to the upper mold (4); the right end of the control component (3) is fixedly connected to the demoulding component (5) used for gently and synchronously removing the contact lens from the multiple stations of the lower mold; and the right end of the mold platform (1) is installed with a material discharge component (6) used for orderly discharge of the contact lens.

2. The automatic demoulding device for multi-station contact lens production according to claim 1, characterized in that: The control component (3) comprises a rotating motor (301), a transmission member (302), a support column (303), a linear drive mechanism (304) and a moving seat (305); the transmission member (302) is arranged at the upper end of the output shaft of the rotating motor (301).

3. The automatic demoulding device for producing multi-station contact lenses according to claim 2, characterized in that: The upper end of the transmission member (302) linkage shaft is fixedly connected to a support column (303); a linear drive mechanism (304) for controlling the lifting and lowering of the upper mold (4) and the demoulding assembly (5) is installed inside the support column (303); the linear drive mechanism (304) is fixedly connected to the upper mold (4) and the demoulding assembly (5) via a movable seat (305).

4. The automatic demoulding device for multi-station contact lens production according to claim 1, characterized in that: The demoulding assembly (5) comprises a mounting plate (501), a negative pressure device (502) and a negative pressure head group (503); the negative pressure device (502) is mounted on the upper end of the mounting plate (501); and the negative pressure head group (503) is mounted at an equidistant distribution on the lower end of the negative pressure device (502).

5. The automatic demoulding device for multi-station contact lens production according to claim 1, characterized in that: The material unloading component (6) comprises a transmission belt (601), a fixing seat (602), a placement plate (603), a magnetic surface A (604) and a magnetic surface B (605); the fixing seats (602) are evenly distributed on the outer surface of the transmission belt (601).

6. The automatic demoulding device for multi-station contact lens production according to claim 5, characterized in that: A placement plate (603) is embedded and connected inside the fixing seat (602); a magnetic surface A (604) is provided at the lower end of the placement plate (603); a magnetic surface B (605) is provided inside the fixing seat (602); and the magnetic surface B (605) is adsorbed and connected to the magnetic surface A (604).

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