A lens mold tape wrapping device

Abstract

This utility model relates to a tape winding device for lens molds, including a sliding platform. The sliding platform approaches or moves away from a mold support platform via a first pneumatic mechanism. A feeding shaft for mounting the tape roll is located above the sliding platform, and a feeding motor is driven to the feeding shaft. One end of the sliding platform is equipped with a tape pressure roller and a second pneumatic mechanism that pushes the tape pressure roller to press the tape. A cutter holder driven by a third pneumatic mechanism is also installed, with a cutter fixed at its front end. The third pneumatic mechanism drives the cutter holder to cut the tape. This utility model mounts the tape on the sliding platform, moves the sliding platform closer to the mold via the first pneumatic mechanism, moves the tape pressure roller to adhere the tape to the mold via the second pneumatic mechanism, feeds the tape via the rotation of the feeding motor, and cuts the tape via the third pneumatic mechanism. This achieves automatic control of tape winding, reduces manual intervention, enables continuous operation, and improves labor efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of optical lens manufacturing and processing equipment, and particularly to a lens mold tape winding device. Background Technology

[0002] Optical lens products are formed by lens molds, which consist of two parts, A mold and B mold. After positioning the A mold and B mold, a strip of tape is wrapped around the outside of the mold. Then, raw material is injected between the A mold and B mold. After the lens is formed, the A mold and B mold are removed. The tape is used to seal the edges of the mold.

[0003] Manually sealing the outer edges of molds A and B is not only inefficient, but also lacks precision. If tooling or fixtures are used for wrapping, continuous operation between processes cannot be achieved, resulting in low efficiency. Furthermore, both wrapping methods are highly dependent on manual labor, leading to low automation in the production process. Therefore, it is necessary to develop a lens mold tape wrapping device to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lens mold tape winding device with a high degree of automation and capable of continuous production.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a lens mold tape winding device, including a sliding platform disposed on one side of a mold support platform, and a first pneumatic mechanism disposed at one end of the mold support platform near the sliding platform, wherein the sliding platform approaches or moves away from the mold support platform through the first pneumatic mechanism;

[0006] A feeding shaft for mounting tape rolls is provided above the sliding platform. A feeding motor is driven to one end of the feeding shaft that passes downward through the sliding platform. The tape is pulled outward through the feeding shaft and led from one end of the sliding platform to the mold support platform. A tape pressure roller is provided at the end of the sliding platform for tape discharge. The tape pressure roller is mounted on a front push plate. A second pneumatic mechanism is provided on the sliding platform for pushing the front push plate toward the tape so that the tape pressure roller presses down on the tape.

[0007] The front push plate is also equipped with a knife holder driven by a third pneumatic mechanism. A cutter is fixedly installed at the front end of the knife holder. The cutter is located on the side of the tape pressure roller near the mold support platform. The movement directions of the second and third pneumatic mechanisms are both perpendicular to the tape feeding direction. After the tape is wound, the third pneumatic mechanism drives the knife holder to approach the tape so that the cutter cuts the tape.

[0008] As a preferred technical solution, the tape is sleeved on the outside of the feeding shaft, a tape roll pressure plate is provided above the tape, an installation shaft is provided below the tape roll pressure plate, the installation shaft is provided with external threads, the top end of the feeding shaft is provided with an axial installation hole, and the installation shaft passes through the center hole of the tape roll and is installed inside the installation hole through the external threads.

[0009] As a preferred technical solution, the sliding platform is also provided with multiple guide rollers, through which the tape is guided to the tape pressure roller.

[0010] As a preferred technical solution, a tape tightening mechanism is provided on one side of the feeding shaft. The tape tightening mechanism includes a tightening block and a fourth pneumatic mechanism. The fourth pneumatic mechanism pushes the tightening block to push the tape toward the feeding shaft to tighten the tape.

[0011] As a further improvement, the clamping block is made of plastic, and the contact surface between the front end of the clamping block and the tape is a smooth arc surface.

[0012] As a preferred technical solution, the mold support platform also has an extension platform on one side, and the bottom of the sliding platform is provided with a sliding track that is slidably connected to the top of the extension platform. The first pneumatic mechanism pushes the sliding platform to slide linearly along the extension platform.

[0013] The beneficial effects of this utility model are as follows: The tape is mounted on a sliding platform. A first pneumatic mechanism brings the sliding platform close to the mold. A second pneumatic mechanism moves the tape pressure roller to adhere the tape to the mold. The tape is fed out by the rotation of the feeding motor. The tape is wound by the rotation of the mold. A third pneumatic mechanism cuts the tape, thus achieving automatic control of tape winding. This reduces manual intervention, lowers the labor intensity of workers, enables continuous operation of the process, and improves labor efficiency.

[0014] The mounting shaft of the tape roll pressure plate is threadedly connected to the feeding shaft, and the height of the tape roll pressure plate can be adjusted according to the width of the tape. Since the tape roll pressure plate corresponds to the position of the lens mold, the tape can be adjusted adaptively according to the position of the mold, which improves the utilization rate of the overall device.

[0015] The tape tightening mechanism makes it easy to cut the tape.

[0016] The sliding platform slides linearly along the extension platform, making the operation of the sliding platform more stable and improving the accuracy of sliding control and the reliability of device operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a top view of the structure of an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram showing the installation positions of the tape pressure roller, cutter, and mold in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram showing the tape pressure roller moving to the mold position;

[0022] In the diagram: 1-Mold support platform; 11-Mold A; 12-Mold B; 13-Mold suction cup; 14-Turntable; 15-Extension table; 2-Sliding platform; 21-First pneumatic mechanism; 22-Sliding track; 3-Feeding shaft; 31-Feeding motor; 32-Tape roll pressure plate; 321-Mounting shaft; 4-Tape pressure roller; 41-Front push plate; 42-Second pneumatic mechanism; 43-Guide roller; 44-Pressure block; 45-Fourth pneumatic mechanism; 5-Knife holder; 51-Third pneumatic mechanism; 52-Cutter; 6-Tape. Detailed Implementation

[0023] like Figures 1 to 4 The illustrated lens mold tape wrapping device is set on one side of a mold support platform 1. The positions and distances of mold A 11 and mold B 12 are positioned on the mold support platform 1 by a mold suction cup 13 and a turntable 14. Mold A 11 is placed on top of the turntable 14, and multiple air nozzles on the top of the turntable 14 are used to hold mold A 11 in place. The turntable 14 can rotate under the drive of a motor. Mold B 12 is provided with a mold suction cup 13 above it, and multiple air nozzles on the bottom of the mold suction cup 13 are used to hold mold B 12 in place. The mold suction cup 13 can rotate under the drive of a motor.

[0024] Because air nozzles are provided on the turntable 14 and the mold suction cup 13, and air passages are provided inside them, the negative pressure device is connected through the air passages, and the positions of mold A 11 and mold B 12 are positioned by negative pressure adsorption.

[0025] When wrapping the tape, the turntable 14 and the mold suction cup 13 start to rotate, driving the tape 6 to wrap the A mold and the B mold together. Since the mold support platform is not the technical problem to be solved in this utility model, its function is only briefly introduced here, and its structure will not be described in detail.

[0026] The lens mold tape winding device includes a sliding platform 2. A first pneumatic mechanism 21 is provided at one end of the mold support platform 1 near the sliding platform 2. The sliding platform 2 approaches or moves away from the mold support platform 1 through the first pneumatic mechanism 21. The first pneumatic mechanism is a linear cylinder. The linear cylinder is installed on one side of the mold platform. The sliding platform 2 is installed on the slider of the linear cylinder push rod.

[0027] A feeding shaft 3 for mounting tape rolls is provided above the sliding platform 2. The feeding shaft 3 passes downward through one end of the sliding platform 2 and is connected to a feeding motor 31. The tape 6 is pulled outward through the feeding shaft 3 and led from one end of the sliding platform 2 to the mold support platform 1. A tape pressure roller 4 is provided at the end of the sliding platform 2 for tape output. The tape pressure roller 4 is mounted on the front push plate 41. A second pneumatic mechanism 42 is provided on the sliding platform 2 for pushing the front push plate 41 toward the tape 6 so that the tape pressure roller 4 presses the tape. The second pneumatic mechanism 42 includes a cylinder, a cylinder push rod and an air inlet pipe. The front push plate 41 is mounted on the cylinder push rod of the second pneumatic mechanism 42 and slides above the platform when pushed by the second pneumatic mechanism 42.

[0028] A knife holder 5 driven by a third pneumatic mechanism 51 is also installed on the front push plate 41. A cutter 52 is fixedly installed at the front end of the knife holder 5. The third pneumatic mechanism includes a cylinder, a cylinder push rod, and an air inlet pipe. The knife holder 51 is installed on the cylinder push rod of the third pneumatic mechanism 51. The cutter 52 is located on the side of the tape pressure roller 4 near the mold support platform 1. The moving directions of the second pneumatic mechanism 42 and the third pneumatic mechanism 51 are both perpendicular to the tape feeding direction. After the tape is wound, the third pneumatic mechanism 51 drives the knife holder 5 to approach the tape 6 so that the cutter 52 cuts the tape.

[0029] The tape roll is sleeved on the outside of the feeding shaft 3. A tape roll pressure plate 32 is provided above the tape roll, and an installation shaft 321 is provided below the tape roll pressure plate 32. The installation shaft 321 is provided with external threads. The top of the feeding shaft 3 is provided with an axial installation hole, and the installation hole is provided with threads. The installation shaft 321 passes through the center hole of the tape roll and is installed inside the installation hole through its external threads. By rotating the tape roll pressure plate 32, the position of the tape roll pressure plate 32 can be adjusted according to the width of the tape.

[0030] The sliding platform 2 is also provided with multiple guide rollers 43. The tape 6 is guided to the tape pressure roller 4 through the guide rollers 43. Preferably, the number of guide rollers can be flexibly set, but at least two are provided to ensure that the tape is smoothly guided to the tape pressure roller 4.

[0031] A tape tightening mechanism is provided on one side of the feeding shaft 3. The tape tightening mechanism includes a tightening block 44 and a fourth pneumatic mechanism 45. The fourth pneumatic mechanism also includes a cylinder, a cylinder push rod, and an air inlet pipe. The tightening block 44 is installed on the cylinder push rod of the fourth pneumatic mechanism 45 and extends back and forth under the push of the fourth pneumatic mechanism 45. When the fourth pneumatic mechanism 45 pushes the tightening block 44 forward, it pushes the tape 6 toward the feeding shaft 3, so that the tape is tightened.

[0032] To prevent the tape from breaking under pressure, the clamping block 44 is made of plastic, but it can also be made of organic materials such as rubber or silicone. The contact surface between the front end of the clamping block 44 and the tape 6 is a smooth arc surface to avoid damage to the tape surface.

[0033] Since the first pneumatic mechanism uses a linear cylinder, in order to ensure the stability of the sliding platform operation, there is an extension platform 15 on one side of the mold support platform 1 when the linear cylinder is moving. The bottom of the sliding platform 2 is provided with a sliding rail 22 that is slidably connected to the top of the extension platform 15. The sliding rail 22 is located on both sides of the first pneumatic mechanism 21. When the first pneumatic mechanism 21 pushes the sliding platform 2 to move, the sliding rail 22 slides linearly along the extension platform 15.

[0034] The tape wrapping process in this embodiment is as follows:

[0035] After the mold is positioned, the first pneumatic mechanism 21 is activated to push the sliding platform 2 towards the mold support platform 1. When the sliding platform 2 is in place, the position of the tape pressure roller 4 is exactly opposite to the mold. Figure 4 As shown.

[0036] Start the second pneumatic mechanism 42 to push the tape pressure roller 4 closer to the mold and press the tape 6 onto the side of the mold. At this time, the turntable 14, the mold suction cup 13 and the feeding shaft 3 on the mold support platform 1 rotate synchronously. The tape 6 is pulled outward through the guide roller 43 and winds the mold as it rotates. When the preset number of turns or angle is reached, the turntable 14, the mold suction cup 13 and the feeding shaft 3 stop rotating.

[0037] After the winding is completed, the fourth pneumatic mechanism 45 is activated, pushing the clamping block 44 outward to push the tape 6 towards the feeding shaft 3 to tighten the tape. Then, the third pneumatic mechanism 51 is activated, pushing the cutter 52 forward to cut the tape 6. After the tape 6 is cut, the third pneumatic mechanism 51 and the second pneumatic mechanism 42 are reset, and the cutter 52 and the tape pressure roller 4 are moved away from the mold to facilitate mold removal. After the mold is removed, the first pneumatic mechanism 21 is reset, and the sliding platform 2 is reset.

[0038] After the mold support platform 1 has positioned the mold, repeat the above actions in sequence.

[0039] Multiple position switches are installed at designated locations on the mold support platform 1 to detect the positions of the sliding platform 2, tape roller 4, cutter 52, and clamping block 44. When the sliding platform 2, tape roller 4, cutter 52, and clamping block 44 move to the set positions, the position switches activate to initiate the next action. Position switches are commonly used electrical components in the prior art, and their electrical wiring and control methods are conventional techniques in this field, which will not be elaborated here.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An ophthalmic lens mold tape wrapping apparatus, characterized by, It includes a sliding platform disposed on one side of the mold support platform, and a first pneumatic mechanism is provided at one end of the mold support platform near the sliding platform. The sliding platform approaches or moves away from the mold support platform through the first pneumatic mechanism. A feeding shaft for mounting tape rolls is provided above the sliding platform. A feeding motor is driven to one end of the feeding shaft that passes downward through the sliding platform. The tape is pulled outward through the feeding shaft and led from one end of the sliding platform to the mold support platform. A tape pressure roller is provided at the end of the sliding platform for tape discharge. The tape pressure roller is mounted on a front push plate. A second pneumatic mechanism is provided on the sliding platform for pushing the front push plate toward the tape so that the tape pressure roller presses down on the tape. The front push plate is also equipped with a knife holder driven by a third pneumatic mechanism. A cutter is fixedly installed at the front end of the knife holder. The cutter is located on the side of the tape pressure roller near the mold support platform. The movement directions of the second and third pneumatic mechanisms are both perpendicular to the tape feeding direction. After the tape is wound, the third pneumatic mechanism drives the knife holder to approach the tape so that the cutter cuts the tape.

2. A lens mold tape wrapping apparatus as in claim 1, wherein: The tape roll is sleeved on the outside of the feeding shaft. A tape roll pressure plate is provided above the tape. An installation shaft is provided below the tape roll pressure plate. The installation shaft is provided with external threads. An axial installation hole is provided at the top of the feeding shaft. The installation shaft passes through the center hole of the tape roll and is installed inside the installation hole through the external threads.

3. A lens mold tape wrapping apparatus as in claim 1, wherein: The sliding platform is also equipped with multiple guide rollers, through which the tape is guided to the tape pressure roller.

4. A lens mold tape wrapping apparatus as in claim 1, wherein: A tape tightening mechanism is provided on one side of the feeding shaft. The tape tightening mechanism includes a tightening block and a fourth pneumatic mechanism. The fourth pneumatic mechanism pushes the tightening block to push the tape toward the feeding shaft to tighten the tape.

5. A lens mold tape wrapping apparatus as claimed in claim 4, wherein: The clamping block is made of plastic, and the contact surface between the front end of the clamping block and the tape is a smooth arc surface.

6. A lens mold tape wrapping apparatus as claimed in any one of claims 1 to 5, characterized in that: The mold support platform also has an extension platform on one side. The bottom of the sliding platform is provided with a sliding track that is slidably connected to the top of the extension platform. The first pneumatic mechanism pushes the sliding platform to slide linearly along the extension platform.

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