An adhesive pasting mechanism

Abstract

The present invention relates to a glue pasting mechanism, which includes a long-side tape feeding mechanism, a short-side tape feeding mechanism, a glue frame loading and unloading mechanism, and a tape transfer mechanism; the long-side tape feeding mechanism completes the peeling of the upper film and the lower film of the long-side tape, and includes a feeding component A, an upper film peeling component A, and a lower film peeling component A; the short-side tape feeding mechanism completes the peeling of the upper film and the lower film of the short-side tape, and includes a feeding component B, an upper film peeling component B, and a lower film peeling component B; the glue frame loading and unloading mechanism is arranged at the ends of the long-side tape feeding mechanism and the short-side tape feeding mechanism to complete the loading and unloading of the glue frame, and includes a loading fixture and a first driving member; the tape transfer mechanism completes the transfer of the long-side tape and the short-side tape to the glue frame, and includes a picking fixture and a second driving member; the present invention can realize the simultaneous feeding of the long-side tape and the short-side tape on the four sides of the glue frame, which not only improves the working efficiency, but also saves the space layout of the whole equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and particularly relates to a tape pasting mechanism. Background Art

[0002] With the development of the information industry, the demand for liquid crystal display screens has been continuously climbing. On the one hand, people have more stringent control over the quality of liquid crystal screens; on the other hand, the intensity of industry competition is increasing day by day. Therefore, it has become particularly important to improve production efficiency and product quality and reduce production costs.

[0003] A frame, also known as a glue frame, is provided around the liquid crystal display screen, and tapes need to be attached to its four sides before installation. Since the glue frame has a rectangular structure, the tape has a long side end and a short side end. In existing automation equipment, due to the different lengths of the tapes, two sets of equipment are required to complete the feeding of the two lengths of tapes, which increases the processing procedures and the transfer of products between procedures, and the working efficiency is relatively low. At the same time, the corresponding processing equipment also occupies a large amount of space and the investment cost is too high. Therefore, the present invention has developed a tape pasting mechanism to solve the problems existing in the prior art. After searching, no technical solutions identical or similar to the present invention have been found. Summary of the Invention

[0004] The object of the present invention is to provide a tape pasting mechanism to solve the problems such as increased procedures, reduced working efficiency, and excessive space occupation of equipment caused by feeding when attaching tapes of different lengths to the four sides of the glue frame in the prior art.

[0005] The technical solution of the present invention is: a tape pasting mechanism, comprising:

[0006] A long-side tape feeding mechanism for completing the peeling of the upper film and the lower film of the long-side tape, including a feeding component A, an upper film peeling component A, and a lower film peeling component A;

[0007] A short-side tape feeding mechanism for completing the peeling of the upper film and the lower film of the short-side tape, which is arranged in parallel with the long-side tape feeding mechanism, including a feeding component B, an upper film peeling component B, and a lower film peeling component B;

[0008] A glue frame loading and unloading mechanism, which is arranged at the end of the long-side tape feeding mechanism and the short-side tape feeding mechanism, for completing the loading and unloading of the glue frame, including a loading fixture and a first driving member;

[0009] A tape transfer mechanism for transferring the long-side tape and the short-side tape onto the glue frame, including a picking fixture and a second driving member.

[0010] Preferably, the long-side tape feeding mechanism and the short-side tape feeding mechanism have the same structure but different dimensions, and both include a material-releasing reel, an upper film reel, a lower film reel, a material-receiving platform, an upper film peeling knife, a vacuum adsorption table, a lower film peeling knife, and a peeling table arranged in sequence along the tape movement direction; a first roller is arranged between the material-releasing reel and the material-receiving platform, a second roller is arranged between the upper film peeling knife and the upper film reel, and a pressing mechanism, a third roller, and a fourth roller are arranged between the lower film peeling knife and the lower film reel; wherein, the material-releasing reel, the first roller, the material-receiving platform, and the vacuum adsorption table constitute the material-releasing assembly A / material-releasing assembly B; the upper film reel, the upper film peeling knife, and the second roller constitute the upper film peeling assembly A / upper film peeling assembly B; the lower film reel, the lower film peeling knife, the pressing mechanism, the third roller, and the fourth roller constitute the lower film peeling assembly A / lower film peeling assembly B.

[0011] Preferably, the upper end surfaces of the material-receiving platform, the vacuum adsorption table, the lower film peeling knife, and the peeling table are in the same horizontal plane. A pin hole is arranged on the end surface of the vacuum adsorption table or the lower film peeling knife, and a pin shaft for aligning and positioning the long-side tape / short-side tape during feeding is inserted and matched in the pin hole; a detachable magnetic seat is adsorbed on the vacuum adsorption table.

[0012] Preferably, the pressing mechanism includes a fixed roller, a movable roller, and a cylinder for driving the movement of the movable roller. The tape is wound around the fixed roller and is pressed by the abutment of the movable roller.

[0013] Preferably, a turning mechanism is further arranged at the ends of the long-side tape feeding mechanism and the short-side tape feeding mechanism. The turning mechanism includes a turning platform, a first vacuum buffer suction cup installed on the turning platform, a third driving part for driving the linear movement of the turning platform, and a fourth driving part for driving the turning movement of the turning platform; the third driving part is a cylinder and is installed on a rotating plate; the fourth driving part is a motor and is connected with a transmission wheel and a conveyor belt to drive the rotation of the rotating plate.

[0014] Preferably, the first vacuum buffer suction cup is in a strip-shaped structure, and a rubber suction cup is selected, or a guide post and a buffer spring are arranged between the first vacuum buffer suction cup and the turning platform.

[0015] Preferably, the rubber frame loading and unloading mechanism includes two groups of loading fixtures and two groups of first driving parts. The heights of the two loading fixtures are different. One of the loading fixtures is directly connected to the third driving part, and the other loading fixture is connected through a guide seat connected to the third driving part, and the loading fixture with a lower height can pass through below the guide seat.

[0016] Preferably, a buffer layer is arranged at the upper end of the loading fixture, and the buffer layer can be a rubber layer.

[0017] Preferably, the tape transfer mechanism includes two sets of material taking fixtures and two sets of second driving members, which are respectively arranged corresponding to the long-side tape feeding mechanism and the short-side tape feeding mechanism. The second driving member is preferably a four-axis manipulator. The material taking fixture includes a hanging member installed at the end of the manipulator and a second vacuum buffer suction cup.

[0018] Preferably, the second vacuum buffer suction cup has a long strip-shaped structure and is made of a rubber suction cup, or a guide post and a buffer spring are arranged between the second vacuum buffer suction cup and the hanging member.

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] The present invention can realize the simultaneous feeding of the long-side tape and the short-side tape on the four sides of the glue frame, which not only improves the working efficiency but also saves the space layout of the whole equipment; in terms of details, based on the hole structure of the tape itself, pin holes are arranged on the vacuum adsorption table or the end face of the lower film peeling knife, and corresponding pins are provided. When the tape reel is placed and debugged, the pin passes through the hole on the tape reel and is inserted into the pin hole to realize the effective alignment of the tape, improving the subsequent material taking accuracy. After the alignment is completed, the pin needs to be taken out; at the same time, the first vacuum buffer suction cup and the second vacuum buffer suction cup adopt a buffer structure design, which can ensure that the end face of the suction cup is in full contact with the tape during the process of approaching the tape, so as to realize effective adsorption, thereby providing guarantee for the subsequent tape sticking accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the drawings and embodiments:

[0022] Figure 1 is a schematic structural diagram of a tape sticking mechanism according to the present invention;

[0023] Figure 2 is a schematic structural diagram of the long-side tape feeding mechanism according to the present invention;

[0024] Figure 3 is a partial structural schematic diagram of the long-side tape feeding mechanism according to the present invention;

[0025] Figure 4 is a side view of the long-side tape feeding mechanism according to the present invention;

[0026] Figure 5 is a schematic structural diagram of the short-side tape feeding mechanism according to the present invention;

[0027] Figure 6 is a schematic structural diagram of the flipping mechanism, the glue frame loading and unloading mechanism, and the tape transfer mechanism according to the present invention.

[0028] Among them: 1. Long-side tape feeding mechanism;

[0029] 11. Feeding reel, 12. Upper film reel, 13. Lower film reel, 14. Material receiving platform, 15. Upper film peeling knife, 16. Vacuum adsorption table, 17. Lower film peeling knife, 18. Peeling table, 19. Pin shaft, 110. Magnetic base, 111. First roller shaft, 112. Second roller shaft, 113. Third roller shaft, 114. Fourth roller shaft, 115. Fixed roller, 116. Movable roller, 117. Compression cylinder;

[0030] 2. Short-side tape feeding mechanism;

[0031] 3. Glue frame loading and unloading mechanism;

[0032] 31. Loading fixture, 32. First driving part, 33. Guide seat, 34. Glue frame;

[0033] 4. Tape transfer mechanism;

[0034] 41. Second driving part, 42. Material taking fixture, 421. Hanging part, 422. Second vacuum buffer suction cup;

[0035] 5. Flipping mechanism;

[0036] 51. Flipping platform, 52. First vacuum buffer suction cup, 53. Third driving part, 54. Fourth driving part. Detailed implementation manners

[0037] The following further elaborates on the content of the present invention in conjunction with specific embodiments:

[0038] As Figure 1 shown, a glue pasting mechanism includes a long-side tape feeding mechanism 1, a short-side tape feeding mechanism 2, a flipping mechanism 5, a glue frame loading and unloading mechanism 3, and a tape transfer mechanism 4.

[0039] The long-side tape feeding mechanism 1 is used to complete the peeling of the upper film and the lower film of the long-side tape. As Figures 2 - 4 shown, it includes a feeding reel 11, an upper film reel 12, a lower film reel 13, a material receiving platform 14, an upper film peeling knife 15, a vacuum adsorption table 16, a lower film peeling knife 17, and a peeling table 18 arranged in sequence along the tape movement direction; as Figure 3 shown, the upper end surfaces of the material receiving platform 14, the vacuum adsorption table 16, the lower film peeling knife 17, and the peeling table 18 are in the same horizontal plane. A pair of limiting strips 141 parallel to the tape transmission direction are installed on the material receiving platform 14, and a guiding groove 142 for the two ends of the limiting strips 141 to slide and adjust is provided on the material receiving platform 14, and the guiding groove 142 is arranged along the direction perpendicular to the length direction of the limiting strips 141.

[0040] A first roller shaft 111 is arranged between the material feeding reel 11 and the material receiving platform 14. The height of the top of the first roller shaft 111 is the same as the height of the upper end surface of the material receiving platform 14 and is always higher than the height of the bottom of the material feeding reel 11, ensuring that the tape reel can always move in contact with the material receiving platform 14. The upper film peeling knife 15 is inclined, and a second roller shaft 112 is arranged between the upper film peeling knife 15 and the upper film reel 12. A pressing mechanism, a third roller shaft 113 and a fourth roller shaft 114 are arranged between the lower film peeling knife 17 and the lower film reel 13. The pressing mechanism includes a fixed roller 115, a movable roller 116 and a pressing air cylinder 117 for driving the movable roller 116 to move. The tape is wound around the fixed roller 115 and is pressed by being abutted against the movable roller 116.

[0041] A pin hole is arranged on the vacuum adsorption table 16 or the end surface of the lower film peeling knife 17, and a pin shaft 19 for aligning and positioning the tape during tape loading is inserted and matched in the pin hole. During the placement and debugging of the tape reel, the pin shaft 19 passes through the hole in the tape reel and is inserted into the pin hole to achieve effective alignment of the tape, improving the subsequent material taking accuracy. After alignment, the pin shaft 19 needs to be taken out. In the early stage of installing the tape reel, the front end of the tape needs to be pressed, and in this case, the tape may be stretched and deformed, resulting in the hole in the tape being enlarged, and the pin shaft 19 cannot play a significant positioning role. Therefore, a detachable magnetic seat 110 is adsorbed on the vacuum adsorption table 16 to press the tape by the magnetic seat 110 to prevent the tape from being stretched and deformed. When the tape is debugged and aligned, the magnetic seat 110 is removed.

[0042] The above-mentioned material feeding reel 11, first roller shaft 111, material receiving platform 14 and vacuum adsorption table 16 constitute a material feeding assembly A; the upper film reel 12, upper film peeling knife 15 and second roller shaft 112 constitute an upper film peeling assembly A; the lower film reel 13, lower film peeling knife 17, pressing mechanism, third roller shaft 113 and fourth roller shaft 114 constitute a lower film peeling assembly A.

[0043] The short-side tape feeding mechanism 2 is used to complete the peeling of the upper film and the lower film of the short-side tape, and is arranged in parallel with the long-side tape feeding mechanism 1, as Figure 5As shown, the short-side tape feeding mechanism 2 has the same structure as the long-side tape feeding mechanism 1 but different dimensions. It also includes a material-releasing reel 11, an upper film reel 12, a lower film reel 13, a material-receiving platform 14, an upper film peeling knife 15, a vacuum adsorption table 16, a lower film peeling knife 17, and a peeling table 18 arranged in sequence along the tape movement direction. A first roller 111 is provided between the material-releasing reel 11 and the material-receiving platform 14, a second roller 112 is provided between the upper film peeling knife 15 and the upper film reel 12, and a pressing mechanism, a third roller 113, and a fourth roller 114 are provided between the lower film peeling knife 17 and the lower film reel 13. Among them, the material-releasing reel 11, the first roller 111, the material-receiving platform 14, and the vacuum adsorption table 16 constitute a material-releasing assembly B; the upper film reel 12, the upper film peeling knife 15, and the second roller 112 constitute an upper film peeling assembly B; the lower film reel 13, the lower film peeling knife 17, the pressing mechanism, the third roller 113, and the fourth roller 114 constitute a lower film peeling assembly B. A pin hole is provided on the end face of the vacuum adsorption table 16 or the lower film peeling knife 17, and a pin shaft 19 for aligning and positioning the tape during tape feeding is inserted into the pin hole. At the same time, a detachable magnetic seat 110 is adsorbed on the vacuum adsorption table 16.

[0044] As Figure 1 shown, a flipping mechanism 5 is also provided at the ends of the long-side tape feeding mechanism 1 and the short-side tape feeding mechanism 2. As Figure 6 shown, the flipping mechanism 5 includes a flipping platform 51, a first vacuum buffer suction cup 52 installed on the flipping platform 51, a third driving member 53 for driving the flipping platform 51 to move linearly, and a fourth driving member 54 for driving the flipping platform 51 to flip. The first vacuum buffer suction cup 52 has a long-strip structure and is made of a rubber suction cup, or a guide post and a buffer spring are provided between it and the flipping platform 51. The buffer structure makes the adsorption effect on the long-strip tape better and ensures the adsorption tightness between the end face of the first vacuum buffer suction cup 52 and the tape end face. The third driving member 53 is a cylinder and is installed on a rotating plate. The fourth driving member 54 is a motor and is connected with a transmission wheel and a conveyor belt to drive the rotating plate to rotate.

[0045] The glue frame loading and unloading mechanism 3 is arranged at the ends of the long-side tape feeding mechanism 1 and the short-side tape feeding mechanism 2 to complete the loading and unloading of the glue frame 34. As Figure 6As shown, it includes a material loading fixture 31 and a first driving member 32. In this embodiment, both the material loading fixture 31 and the first driving member 32 are provided in two groups. The first driving member 32 can be an electric cylinder. The two material loading fixtures 31 have different heights. One of the material loading fixtures 31 is directly connected to the third driving member 53, and the other material loading fixture 31 is connected through a guiding seat 33 connected to the third driving member 53, and the material loading fixture 31 with a lower height can pass through below the guiding seat 33. The two material loading fixtures 31 feed materials alternately, effectively ensuring the working efficiency. A buffer layer is provided at the upper end of the material loading fixture 31. The buffer layer can be a rubber layer. Since the glue frame 34 for placing the tape to be attached is on the material loading fixture 31 during work, when the tape is attached to the glue frame 34, the rubber layer can also play a buffering role, and the flexible structures are pressed against each other for fitting, effectively ensuring the attachment effect of the tape.

[0046] The tape transfer mechanism 4 is used to transfer the long-edge tape and the short-edge tape to the glue frame 34, as Figure 6 shown, it includes a material taking fixture 42 and a second driving member 41. In this embodiment, both the material taking fixture 42 and the second driving member 41 are provided in two groups, corresponding to the long-edge tape feeding mechanism 1 and the short-edge tape feeding mechanism 2 respectively. The second driving member 41 is a four-axis manipulator. The material taking fixture 42 includes a hanging member 421 installed at the end of the manipulator and a second vacuum buffer suction cup 422. The second vacuum buffer suction cup 422 is in a long strip structure, a rubber suction cup is selected, or a guide post and a buffer spring are arranged between the second vacuum buffer suction cup 422 and the hanging member 421.

[0047] Before the work of the present invention, the long-edge tape reel and the short-edge tape need to be aligned before being placed. The method is as follows: (hereinafter, the long-edge tape reel and the short-edge tape reel are collectively referred to as the tape reel)

[0048] Press the front end of the tape reel between the fixed roller 115 and the movable roller 116, and align the holes on the tape corresponding to the pin holes with the pin holes. Insert the pin shaft 19 through the tape and into the pin holes. Since the front end is pressed, there is a stretching effect on the tape reel, which will cause the tape reel to deform. To prevent the pin holes from being enlarged and affecting the positioning of the pin shaft 19, a magnetic seat 110 is pressed on the tape reel above the vacuum adsorption table 16, reducing the deformation of the tape reel, ensuring the positioning accuracy of the tape, and preventing feeding deviation. When the debugging is completed, the pin shaft 19 and the magnetic seat 110 can be removed.

[0049] The long-edge tape feeding mechanism 1 and the short-edge feeding mechanism work simultaneously. During work, the tape reel includes a tape, an upper film, and a lower film. When the tape reel passes through the upper film peeling knife 15, the upper film is peeled off. When it moves to the end of the lower film peeling knife 17, the lower film is peeled off. At this time, the tape from which the upper film and the lower film are peeled off moves to the peeling table 18 for the flipping mechanism 5 to suck.

[0050] Next, the first vacuum buffer suction cup 52 faces downward, adsorbs the tape from the peeling table 18. After the adsorption is completed, it is driven by a motor to flip 180°, making the first vacuum buffer suction cup 52 face upward; at the same time, the operator loads the glue frame 34, places the glue frame 34 on the material-carrying fixture 31, and then the material-carrying fixture 31 is driven by an electric cylinder to move towards the flipping mechanism 5; then two four-axis manipulators work, driving the second vacuum buffer suction cups 422 to adsorb the long-edge tape and the short-edge tape from the two first vacuum buffer suction cups 52 respectively, and attach them to the glue frame 34 above the material-carrying fixture 31; after the attachment is completed, the material-carrying fixture 31 moves away from the flipping mechanism 5, and another material-carrying fixture 31 moves towards the flipping mechanism 5 to continue attaching the tape; the two material-carrying fixtures 31 alternate in loading to achieve efficient tape attachment.

[0051] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention.

Claims

1. A glue - sticking mechanism, characterized in that, Including: A long-side tape feeding mechanism for completing the peeling of the upper film and the lower film of the long-side tape, including a feeding component A, an upper film peeling component A, and a lower film peeling component A; A short-side tape feeding mechanism for completing the peeling of the upper film and the lower film of the short-side tape, arranged in parallel with the long-side tape feeding mechanism, including a feeding component B, an upper film peeling component B, and a lower film peeling component B; A glue frame loading and unloading mechanism, arranged at the end of the long-side tape feeding mechanism and the short-side tape feeding mechanism, for completing the loading and unloading of the glue frame, including a loading fixture and a first driving member; A tape transfer mechanism for transferring the long-side tape and the short-side tape onto the glue frame, including a picking fixture and a second driving member; Among them, the long-side tape feeding mechanism and the short-side tape feeding mechanism have the same structure but different sizes, and both include a feeding reel, an upper film reel, and a lower film reel, a receiving platform, an upper film peeling knife, a vacuum adsorption table, a lower film peeling knife, and a peeling table arranged in sequence along the tape movement direction; a first roller is arranged between the feeding reel and the receiving platform, a second roller is arranged between the upper film peeling knife and the upper film reel, and a pressing mechanism, a third roller, and a fourth roller are arranged between the lower film peeling knife and the lower film reel; among them, the feeding reel, the first roller, the receiving platform, and the vacuum adsorption table constitute the feeding component A / feeding component B; the upper film reel, the upper film peeling knife, and the second roller constitute the upper film peeling component A / upper film peeling component B; the lower film reel, the lower film peeling knife, the pressing mechanism, the third roller, and the fourth roller constitute the lower film peeling component A / lower film peeling component B; A flipping mechanism is further arranged at the end of the long-side tape feeding mechanism and the short-side tape feeding mechanism. The flipping mechanism includes a flipping platform, a first vacuum buffer suction cup installed on the flipping platform, a third driving member for driving the flipping platform to move linearly, and a fourth driving member for driving the flipping platform to flip; the third driving member is selected as a cylinder and installed on a rotating plate; the fourth driving member is selected as a motor and is connected with a transmission wheel and a conveyor belt to drive the rotating plate to rotate; The glue frame loading and unloading mechanism includes two groups of loading fixtures and two groups of first driving members. The two loading fixtures have different heights. One of the loading fixtures is directly connected to the third driving member, and the other loading fixture is connected through a guiding seat connected to the third driving member. Moreover, the loading fixture with a lower height can pass through below the guiding seat, and the two loading fixtures alternate in loading; The tape transfer mechanism includes two groups of picking fixtures and two groups of second driving members, corresponding to the long-side tape feeding mechanism and the short-side tape feeding mechanism respectively. The second driving member is selected as a four-axis manipulator, and the picking fixture includes a hanging member installed at the end of the manipulator and a second vacuum buffer suction cup.

2. The glue - sticking mechanism according to claim 1, wherein: The upper end surfaces of the receiving platform, the vacuum adsorption table, the lower film peeling knife, and the peeling table are in the same horizontal plane. A pin hole is arranged on the end surface of the vacuum adsorption table or the lower film peeling knife, and a pin shaft for aligning and positioning the long-side tape / short-side tape during feeding is inserted and matched in the pin hole; a detachable magnetic seat is adsorbed on the vacuum adsorption table.

3. The gluing mechanism according to claim 2, characterized in that: The pressing mechanism includes a fixed roller, a movable roller, and a cylinder for driving the movement of the movable roller. The tape is wound around the fixed roller and is pressed by being abutted against the movable roller.

4. The adhesive application mechanism according to claim 3, characterized in that: The first vacuum buffer suction cup has a long strip structure and is made of a rubber suction cup, or a guide post and a buffer spring are arranged between the first vacuum buffer suction cup and the flipping platform.

5. The rubber pasting mechanism according to claim 4, characterized in that: A buffer layer is arranged at the upper end of the material loading fixture, and the buffer layer is made of a rubber layer.

6. The gluing mechanism according to claim 5, characterized in that: The second vacuum buffer suction cup has a long strip structure and is made of a rubber suction cup, or a guide post and a buffer spring are arranged between the second vacuum buffer suction cup and the hanging piece.

Images