A hemming adhesive attaching apparatus

Abstract

The application provides a kind of edge bonding glue attaching equipment, including attaching mechanism, soothing mechanism located above attaching mechanism, and jacking mechanism driving attaching mechanism and soothing mechanism to rise, attaching mechanism includes pivot, rotating disc fixed on pivot, crank assembly hinged with rotating disc, rocker assembly hinged with crank assembly, and attaching part connected at free end of rocker assembly, edge bonding glue attaching equipment further includes driving mechanism, driving mechanism includes overrunning clutch arranged on pivot, and rack engaged with overrunning clutch, soothing mechanism includes support assembly fixed above attaching mechanism, soothing assembly located at one end of support assembly close to product to be processed, elastic assembly located at one end of support assembly away from product to be processed, and pressing assembly located at one end of elastic assembly away from support assembly, pressing assembly includes cam matched with elastic assembly, and resistance block located below cam, more economically edge bonding glue is attached to product in the application.

Description

Technical Field

[0001] This invention relates to the field of adhesive application equipment technology, and in particular to an edge-sealing adhesive application device. Background Technology

[0002] During the production process, some products require edge wrapping and film application, such as edge wrapping tape application for display modules in the display industry and side photoresist wrapping for Micro LEDs.

[0003] In existing technologies, either the edge-sealing adhesive is applied manually, one edge at a time, typically by first applying the adhesive to the sides of the product and then manually folding and smoothing it onto the surface – a very labor-intensive method; or semi-automatic equipment is used. This method involves an adhesive applicator to pick up the adhesive, apply it to the sides of the product, and then a smoothing device to fold and smooth it onto the surface. This method requires at least three power sources: one to control the up-and-down movement of the applicator to pick up the adhesive, one to control the back-and-forth movement of the applicator to apply the adhesive, and one to control the back-and-forth movement of the smoothing device to fold and smooth the adhesive onto the surface. This semi-automatic equipment is also very costly. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide an edge-sealing adhesive application device, which aims to solve the technical problems of the prior art, which is very wasteful of manpower by manually applying edge-sealing adhesive and too costly by using semi-automatic equipment for application.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] An edge-binding adhesive application device includes an application mechanism, a smoothing mechanism located above the application mechanism, and a lifting mechanism for driving the application mechanism and the smoothing mechanism to rise. The application mechanism includes a rotating shaft, a turntable fixed to the rotating shaft, a crank assembly hinged to the turntable, a rocker assembly hinged to the crank assembly, and an application part connected to the free end of the rocker assembly. The edge-binding adhesive application device further includes a driving mechanism, which includes an overrunning clutch mounted on the rotating shaft and a rack meshing with the overrunning clutch. The smoothing mechanism includes a support fixed above the application mechanism. The assembly includes a smoothing component located at the end of the support assembly near the product to be processed, an elastic component located at the end of the support assembly away from the product to be processed, and a pressing component located at the end of the elastic component away from the support assembly. The pressing component includes a cam that cooperates with the elastic component and a stop block located below the cam. The lifting assembly rises, and the overrunning clutch engages with the rack, so that the rocker assembly drives the attachment portion to move closer to or away from the product to be processed. The lifting assembly falls, and the elastic component cooperates with the pressing component, so that the smoothing component moves closer to or away from the product to be processed.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0008] By incorporating an attachment mechanism, a smoothing mechanism, a lifting mechanism, and a drive mechanism, during use, the lifting mechanism drives the attachment mechanism and smoothing mechanism to rise together. In the attachment mechanism, the outer ring of the overrunning clutch on the rotating shaft contacts the rack, causing the rotating shaft and turntable to rotate. This causes the crank assembly to rotate one revolution around the center of the turntable. The rocker assembly will move closer to or further away from the product to be processed according to a preset stroke. The length of the rack is preset to allow the overrunning clutch to rotate two revolutions. One revolution allows the rocker assembly and attachment assembly to extend and retract once to absorb the edge-wrapping adhesive. The second revolution allows the rocker assembly and attachment assembly to extend and retract again. In one operation, when applying edge-binding adhesive, as the lifting assembly descends, the overrunning clutch contacts the rack. Only the outer ring rotates, while the inner ring remains stationary. The shaft will not rotate, and the application assembly will not extend or retract. Once it descends to the preset height, the elastic component contacts the cam, which will compress the support assembly and the smoothing component, causing them to move towards the product to be processed. This smooths the edge-binding adhesive onto the surface of the product. The descent continues until the elastic component disengages from the cam and rebounds, thus completing one application operation. During the ascent, the smoothing mechanism contacts the cam. Since there is no stop block, the cam will rotate upwards and then return to its original position due to gravity.

[0009] Furthermore, the crank assembly includes a connecting post hinged to the turntable and a connecting rod hinged to the connecting post, wherein the axis of the connecting post is not collinear with the axis of the turntable.

[0010] Furthermore, the rocker assembly includes a first slider hinged to the end of the connecting rod near the product to be processed, and a guide rod slidably connected to the first slider, with the attachment portion located at the end of the first slider near the product to be processed.

[0011] Furthermore, the rotating shaft is provided with multiple bearing seats, and the support assembly includes a fixed block, a support rod connecting the fixed block and the bearing seats, a slide rod located at the end of the fixed block near the product to be processed, and a support block slidably connected to the slide rod.

[0012] Furthermore, the elastic component includes an elastic rod that passes through the fixed block and is fixedly connected to the slide rod, an elastic element sleeved on the outer cylindrical surface of the elastic rod, and a contact rod located at the end of the elastic rod away from the fixed block. The two ends of the elastic element are respectively fixedly connected to the fixed block and the elastic rod.

[0013] Furthermore, the smoothing assembly includes an upper roller and a lower roller located at the end of the slide bar near the product to be processed, with a gap between the upper roller and the lower roller for the product to pass through, and both the upper roller and the lower roller are made of flexible material.

[0014] Furthermore, the edge-binding adhesive application equipment also includes an upper base plate and a lower base plate arranged from bottom to top. The lifting mechanism is a cylinder, which is located between the upper base plate and the lower base plate. The application mechanism is installed above the upper base plate, and the rack is fixed to the lower base plate and extends upward after passing through the upper base plate.

[0015] Furthermore, the support assembly also includes a support frame mounted on the upper base plate, and both the fixing block and the support block are fixedly connected to the support frame via the support rod.

[0016] Furthermore, the edge-binding adhesive application equipment also includes a baffle located on the side of the upper base plate and the lower base plate away from the product to be processed. The baffle is fixedly connected to the lower base plate. A second slider is provided on the side of the upper base plate near the baffle. A groove is provided on the baffle to cooperate with the second slider. The lifting component drives the upper base plate to rise so that the second slider slides in the groove.

[0017] Furthermore, the stop block is fixed to the side of the baffle near the smoothing mechanism, and the cam is rotatably connected to the stop block. Attached Figure Description

[0018] Figure 1 This is a perspective view of the edge-sealing adhesive application device in an embodiment of the present invention;

[0019] Figure 2 for Figure 1A first-person perspective 3D view of the attachment mechanism and drive mechanism;

[0020] Figure 3 for Figure 1 A stereoscopic view of the attachment mechanism and drive mechanism from a second perspective;

[0021] Figure 4 for Figure 1 A first-person perspective 3D view of the central pacification mechanism;

[0022] Figure 5 for Figure 1 A stereoscopic view of the central pacification mechanism from a second-person perspective;

[0023] Explanation of key component symbols:

[0024]

[0025]

[0026] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0027] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1 to 5The image shows an edge-binding adhesive application device according to an embodiment of the present invention. It is characterized by comprising an application mechanism 10, a smoothing mechanism 20 located above the application mechanism 10, and a lifting mechanism 40 for driving the application mechanism 10 and the smoothing mechanism 20 upwards. The application mechanism 10 includes a rotating shaft, a turntable 16 fixed to the rotating shaft, a crank assembly hinged to the turntable 16, a rocker assembly hinged to the crank assembly, and an application portion 11 connected to the free end of the rocker assembly. The edge-binding adhesive application device further includes a driving mechanism 30, which includes an overrunning clutch 31 disposed on the rotating shaft and a rack 32 meshing with the overrunning clutch 31. The smoothing mechanism… 20 includes a support assembly fixed above the attachment mechanism 10, a smoothing assembly located at the end of the support assembly near the product to be processed, an elastic assembly located at the end of the support assembly away from the product to be processed, and a pressing assembly located at the end of the elastic assembly away from the support assembly. The pressing assembly includes a cam 83 that cooperates with the elastic assembly and a stop block 84 located below the cam 83. When the lifting assembly rises, the overrunning clutch 31 engages with the rack 32, so that the rocker assembly drives the attachment portion 11 to move closer to or away from the product to be processed. When the lifting assembly falls, the elastic assembly cooperates with the pressing assembly, so that the smoothing assembly moves closer to or away from the product to be processed.

[0031] Preferably, the attachment mechanism 10 is symmetrically arranged, that is, there are two overrunning clutches 31 and two turntables 16, which are located on both sides of the axis of symmetry, in order to make the transmission more stable.

[0032] Understandably, by setting up the attachment mechanism 10, smoothing mechanism 20, lifting mechanism 40, and drive mechanism 30, when in use, the lifting mechanism 40 drives the attachment mechanism 10 and smoothing mechanism 20 to rise together. In the attachment mechanism 10, the outer ring of the overrunning clutch 31 on the rotating shaft will contact the rack 32, causing the rotating shaft and turntable 16 to rotate. This causes the crank assembly to rotate around the center of the turntable 16 once. The rocker assembly will move closer to or further away from the product to be processed according to the preset stroke. The length of the rack 32 is preset to allow the overrunning clutch 31 to rotate twice. One rotation allows the rocker assembly and attachment assembly to extend and retract once for absorbing the edge-wrapping adhesive. The second rotation allows the rocker assembly to extend and retract once. The adhesive is applied once more along with the attachment component. When the lifting component descends, the overrunning clutch 31 contacts the rack 32. Only the outer ring rotates, while the inner ring remains stationary. The shaft will not rotate, and the attachment component will not extend or retract. When it descends to the preset height, the elastic component contacts the cam 83, which will squeeze the support component and the smoothing component toward the product to be processed, so as to smooth the adhesive onto the surface of the product. It continues to descend until the elastic component disengages from the cam 83 and rebounds, thus completing one application operation. When it rises, the smoothing mechanism 20 contacts the cam 83. Since there is no blocking effect of the stop block 84, the cam 83 will rotate upward and then return to its original position due to gravity.

[0033] It should be noted that the attachment part 11 has a vacuum hole 111 at one end near the product to be processed. The purpose of the vacuum hole 111 is to absorb the edge-binding adhesive. Corresponding to the edge-binding adhesive attachment device provided by the present invention, it also includes an adhesive supply mechanism (not shown in the figure). The position of the adhesive supply mechanism should correspond to the placement position of the product to be processed so that the maximum extension distance of the attachment part 11 just contacts the side surface of the adhesive supply mechanism and the product to be processed. Alternatively, a spring (not shown in the figure) can be added to the attachment part 11 to give it a certain deformation and increase the allowable error.

[0034] Specifically, the crank assembly includes a connecting post 15 hinged to the turntable 16 and a connecting rod 14 hinged to the connecting post 15, wherein the axis of the connecting post 15 is not collinear with the axis of the turntable 16.

[0035] The rocker assembly includes a first slider 12 hinged to the connecting rod 14 near the end of the product to be processed, and a guide rod 13 slidably connected to the first slider 12. The attachment part 11 is located at the end of the first slider 12 near the product to be processed.

[0036] The edge-binding adhesive application equipment also includes an upper base plate 60 and a lower base plate 50 arranged from bottom to top. The lifting mechanism 40 is a cylinder, which is located between the upper base plate 60 and the lower base plate 50. The application mechanism 10 is installed above the upper base plate 60. The rack 32 is fixed to the lower base plate 50 and extends upward after passing through the upper base plate 60.

[0037] The edge-binding adhesive application equipment also includes a baffle 70 located on the side of the upper base plate 60 and the lower base plate 50 away from the product to be processed. The baffle 70 is fixedly connected to the lower base plate 50. A second slider is provided on the side of the upper base plate 60 near the baffle 70. A groove is provided on the baffle 70 to cooperate with the second slider. The lifting component drives the upper base plate 60 to rise so that the second slider slides in the groove.

[0038] Understandably, the specific working principle of the attachment mechanism 10 in this invention is as follows:

[0039] When the cylinder extends, it causes the upper base plate 60 and the attaching mechanism 10 to rise together. The second slider slides along the groove to improve stability. It should be noted that the connecting column 15 is located at the rightmost end of the turntable 16 in the initial state. When the upper base plate 60 rises, the overrunning clutch 31 and the rack 32 contact each other, causing the rotating shaft to rotate. The rotation of the rotating shaft drives the turntable 16 to rotate. The rotation of the turntable 16 drives the connecting column 15 to rotate from the rightmost end of the turntable 16 to the leftmost end. When it reaches the leftmost end, the attaching mechanism 10 reaches the farthest distance to adsorb the edge-binding adhesive. The turntable 16 continues to rotate until the connecting column 15 returns to the rightmost end of the turntable 16, indicating that the overrunning clutch 31 has completed one revolution.

[0040] Similarly, the overrunning clutch 31 continues to rotate one revolution, causing the attachment mechanism 10 to extend and retract once more, so as to attach the edge-sealing adhesive to the side of the product to be processed.

[0041] Subsequently, the control cylinder drives the upper base plate 60 to retract. Due to the characteristics of the overrunning clutch 31 structure, only the outer ring of the overrunning clutch 31 rotates at this time, while the inner ring remains stationary. Therefore, the attachment mechanism 10 will not extend or retract.

[0042] Furthermore, the rotating shaft is provided with a plurality of bearing seats 17, and the support assembly includes a fixing block 25, a support rod 81 connecting the fixing block 25 and the bearing seats 17, a slide rod 24 located at the end of the fixing block 25 near the product to be processed, and a support block 23 slidably connected to the slide rod 24.

[0043] The elastic component includes an elastic rod 27 that passes through the fixed block 25 and is fixedly connected to the slide rod 24, an elastic element 26 sleeved on the outer cylindrical surface of the elastic rod 27, and a contact rod 28 located at the end of the elastic rod 27 away from the fixed block 25. The two ends of the elastic element 26 are fixedly connected to the fixed block 25 and the elastic rod 27, respectively.

[0044] The smoothing assembly includes an upper roller 21 and a lower roller 22 located at the end of the slide bar 24 near the product to be processed. A gap is left between the upper roller 21 and the lower roller 22 for the product to be processed to pass through. Both the upper roller 21 and the lower roller 22 are made of flexible material.

[0045] The stop block 84 is fixed to the side of the baffle 70 near the smoothing mechanism 20, and the cam 83 is rotatably connected to the stop block 84.

[0046] Understandably, the specific working principle of the smoothing mechanism 20 in this invention is as follows:

[0047] The smoothing mechanism 20 rises together with the attaching mechanism 10. When the contact rod 28 passes the pressing component, the cam 83 sits on the blocking block 84 by its own weight. The rise of the contact rod 28 will drive the cam 83 to rotate. After the contact rod 28 continues to rise until it is separated from the cam 83, the cam 83 will fall on the blocking block 84 by its own weight.

[0048] After the applying mechanism 10 applies the edge-binding adhesive, it descends together with the smoothing mechanism 20. When the contact rod 28 reaches the cam 83 and contacts the inclined surface of the cam 83, the contact rod 28 drives the slide rod 24 to move to the left. The elastic element 26 is compressed, and the leftward movement of the slide rod 24 drives the upper roller 21 and the lower roller 22 to move to the left, so as to smooth the edge-binding adhesive onto the surface of the product to be processed. The contact rod 28 continues to move downward until it disengages from the cam 83. The elastic element 26 resets, driving the upper roller 21 and the lower roller 22 to reset, thus completing the smoothing operation of the edge-binding adhesive.

[0049] It should be noted that, as the upper roller 21 and the lower roller 22 move up and down as they extend and retract with the slide bar 24, the displacement of the upper and lower rollers is very small. Moreover, the upper roller 21 and the lower roller 22 are made of flexible material. Therefore, they will not only not damage the product to be processed, but will also help to smooth the density.

[0050] Furthermore, the support assembly also includes a support frame 82 mounted on the upper base plate 60, and the fixing block 25 and the support block 23 are both fixedly connected to the support frame 82 through the support rod 81.

[0051] Understandably, the fixed block 25 in the smoothing mechanism 20 is connected to both the bearing seat 17 and the support frame 82 via the support rod 81, and the support block 23 is also connected to the support frame 82, which ensures the overall stability of the smoothing mechanism 20 and prevents instability and misalignment when the elastic rod 27 drives the sliding rod 24 to extend or retract.

[0052] In summary, the edge-binding adhesive application equipment in the above embodiments of the present invention uses only one power source, which can more economically apply edge-binding adhesive to products. It can be used for a long time after the corresponding stroke is adjusted only once.

[0053] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A taping machine, characterized by, The device comprises an attaching mechanism, a smoothing mechanism above the attaching mechanism, and a jacking mechanism driving the attaching mechanism and the smoothing mechanism to rise. The attaching mechanism comprises a rotating shaft, a rotating disc fixed to the rotating shaft, a crank assembly hinged to the rotating disc, a rocker assembly hinged to the crank assembly, and an attaching part connected to the free end of the rocker assembly. The device further comprises a driving mechanism comprising an overrunning clutch provided on the rotating shaft and a rack engaged with the overrunning clutch. The smoothing mechanism comprises a support assembly fixed above the attaching mechanism, a smoothing assembly at the end of the support assembly close to the product to be processed, an elastic assembly at the end of the support assembly away from the product to be processed, and a pressing assembly at the end of the elastic assembly away from the support assembly. The pressing assembly comprises a cam matched with the elastic assembly and a stop block below the cam. When the jacking mechanism rises, the overrunning clutch engages with the rack, so that the rocker assembly drives the attaching part to approach or move away from the product to be processed. When the jacking mechanism descends, the elastic assembly matches with the pressing assembly, so that the smoothing assembly approaches or moves away from the product to be processed. The crank assembly comprises a connecting column hinged to the rotating disc and a connecting rod hinged to the connecting column. The axis of the connecting column is arranged non-collinearly with the axis of the rotating disc. The rocker assembly comprises a first sliding block hinged to the end of the connecting rod close to the product to be processed and a guide rod slidingly connected with the first sliding block. The attaching part is located at the end of the first sliding block close to the product to be processed. A plurality of bearing seats are provided on the rotating shaft. The support assembly comprises a fixed block, a support rod connecting the fixed block and the bearing seat, a sliding rod at the end of the fixed block close to the product to be processed, and a support block slidingly connected with the sliding rod. The elastic assembly comprises an elastic rod penetrating through the fixed block and fixedly connected with the sliding rod, an elastic member sleeved on the outer column surface of the elastic rod, and a contact rod at the end of the elastic rod away from the fixed block. The two ends of the elastic member are fixedly connected with the fixed block and the elastic rod respectively.

2. The taping device of claim 1, wherein, The smoothing assembly comprises an upper roller and a lower roller provided at the end of the sliding rod close to the product to be processed. The upper roller and the lower roller are made of flexible material.

3. The taping device of claim 2, wherein, The device further comprises an upper bottom plate and a lower bottom plate arranged from bottom to top. The jacking mechanism is a gas cylinder located between the upper bottom plate and the lower bottom plate. The attaching mechanism is installed above the upper bottom plate. The rack is fixed to the lower bottom plate and extends upward after penetrating through the upper bottom plate.

4. The taping device of claim 3, wherein, The support assembly further comprises a support frame installed on the upper bottom plate. The fixed block and the support block are fixedly connected with the support frame through the support rod.

5. The taping device of claim 4, wherein, The edge bonding adhesive attaching device further comprises a baffle located on the side of the upper bottom plate and the lower bottom plate away from the product to be processed, the baffle is fixedly connected with the lower bottom plate, the side of the upper bottom plate close to the baffle is provided with a second sliding block, and the baffle is provided with a sliding groove matched with the second sliding block, the jacking mechanism drives the upper bottom plate to rise, so that the second sliding block slides in the sliding groove.

6. The taping device of claim 5, wherein, The stop block is fixedly connected to the side of the baffle close to the flattening mechanism, and the cam is rotationally connected with the stop block.

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