An automatic adhesive pasting device

Abstract

The present invention discloses an automatic adhesive pasting device, which includes a tape placement reel for storing the wound tape; a tape intermittent feeding mechanism for drawing out the tape on the tape placement reel and performing periodic intermittent feeding on the tape; a tape anti-sticking cutting and feeding mechanism for cutting the tape drawn out by the tape intermittent feeding mechanism, and the cutting period of the tape anti-sticking cutting and feeding mechanism is equal to the intermittent feeding period of the tape intermittent feeding mechanism; an extrusion adhesive pasting mechanism for attaching one end of the tape formed by cutting on the tape anti-sticking cutting and feeding mechanism to the workpiece to be pasted. The extrusion adhesive pasting mechanism includes a top rod and a top block; when taking the tape, the top rods at the top and bottom adsorb the back adhesive surface of the tape by negative pressure; when pasting the tape, the top block located in the middle squeezes the middle section of the tape, and the top rod has inclined cutting surfaces for squeezing both ends of the tape. By adopting this invention, the continuous tape strip can be intermittently fed and cut into small segments, and then the small segments of the tape can be extruded and attached to three adjacent vertical surfaces of the workpiece to be pasted.

Description

Technical Field

[0001] The present invention relates to the field of tape pasting equipment, and particularly to an automatic tape pasting device. Background Art

[0002] Sometimes, tapes need to be pasted on the surface of products according to special requirements. Some are for packaging needs, and some are for effects similar to labeling, etc. General planar attachment is relatively easy to implement, but sometimes it involves attachment to complex surfaces. For example, a section of tape needs to be attached to several adjacent vertical surfaces. In this case, it is difficult to control the soft tape. Each tape pasted is in sections, but the initial tape is generally in a continuous roll shape. Subsequently, the continuous tape needs to be cut, so the tape feeding method is required to be intermittent. Currently, it is still difficult to control how to intermittently feed the flexible and lightweight tape in sections. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide an automatic tape pasting device that can intermittently feed a continuous tape strip, cut it into small sections, and then squeeze and paste the small sections of tape onto three adjacent vertical surfaces of the workpiece to be pasted.

[0004] To solve the above problems, the present invention provides an automatic tape pasting device. To achieve the above object, the technical solution adopted by the present invention to solve its technical problems is:

[0005] An automatic tape pasting device includes: a tape placement disk for storing and winding the tape; a tape intermittent feeding mechanism for leading out the tape on the tape placement disk and intermittently feeding the tape periodically; a tape anti-sticking cutting and feeding mechanism for cutting the tape led out by the tape intermittent feeding mechanism, and the cutting period of the tape anti-sticking cutting and feeding mechanism is equal to the intermittent feeding period of the tape intermittent feeding mechanism; an extrusion pasting mechanism for pasting one end of the tape cut on the tape anti-sticking cutting and feeding mechanism onto the workpiece to be pasted; the extrusion pasting mechanism includes a top rod and a top block; two top rods are arranged vertically, each of the two top rods has a horizontal and parallel longitudinal arm, and the same end of the two top rods has an adsorption surface that contacts the back adhesive surface of the tape and coincides with the same spatial plane. The adsorption surface is provided with adsorption holes, and the adsorption holes are connected to a vacuum generator. The two top rods have the freedom to approach or move away from each other; a top block is arranged between the two longitudinal arms. The top block has a linear translation freedom parallel to the length direction of the longitudinal arm. The top block has an end face that contacts the back adhesive surface, and the end face is parallel to the adsorption surface. The top block is connected to a compression spring, and the compression spring applies an elastic force towards the tape direction to the top block; the intersection of the surface of the longitudinal arm facing the top block and the adsorption surface has an inclined section.

[0006] As a further improvement of the present invention, the tape placing disc includes a sleeve; a disc, including a moving disc and a static disc that are parallel to each other. The sleeve passes through the moving disc and the static disc, and a receiving groove for receiving the tape is formed between the moving disc and the static disc; a fixing sleeve, which is assembled with the outer wall of the sleeve and contacts one side axial end face of the moving disc; the moving disc has a hollowed-out hole, and the hollowed-out hole includes a connected circular hollowed-out hole and a radial hollowed-out hole; from the perspective parallel to the axis of the moving disc itself, the edge projection of the circular hollowed-out hole is a major arc, and the diameter of the major arc is greater than the diameter of the fixing sleeve, and the center of the major arc does not coincide with the center of the moving disc; from the perspective parallel to the axis of the moving disc itself, the edge projection of the end of the radial hollowed-out hole away from the circular hollowed-out hole is a semi-circular arc, and the diameter of the semi-circular arc is less than the diameter of the fixing sleeve, and the center of the semi-circular arc coincides with the center of the moving disc; from the perspective projection parallel to the axis of the moving disc itself, the two ends of the semi-circular arc and the major arc are respectively connected by two line segments, and the line segments are tangent to the semi-circular arc; the moving disc is made of a transparent material.

[0007] As a further improvement of the present invention, the tape intermittent feeding mechanism includes a clamping mechanism that clamps one end of the wound tape on the tape placing disc; a limiting roller. From the tape placing disc to the clamping mechanism, the tape sequentially contacts a first limiting roller, a second limiting roller, a third limiting roller, and a fourth limiting roller whose axes are parallel to each other. The first limiting roller, the second limiting roller, the third limiting roller, and the fourth limiting roller alternately contact the two sides of the tape one by one. The spatial positions of the first limiting roller, the third limiting roller, and the fourth limiting roller are fixed, and the second limiting roller has a linear reciprocating translation degree of freedom perpendicular to the connection line of the first limiting roller and the third limiting roller; the length of the tape tangent to the first limiting roller is always less than the length of the tape tangent to the third limiting roller.

[0008] As a further improvement of the present invention, the circumferential surface of the limiting roller has a corrugated surface, and the local diameter of the corrugated surface changes periodically along the axial direction of the limiting roller; the corrugated surface is an external thread on the limiting roller, and two limiting rings are sleeved on the external thread of the fourth limiting roller, and the distance between the two limiting rings is equal to the width of the tape.

[0009] As a further improvement of the present invention, a back plate is commonly fixed to the tape placing disc, the first limiting roller, the second limiting roller, the third limiting roller, and the fourth limiting roller from top to bottom. The first limiting roller and the third limiting roller are in the same vertical plane of space; a first linear cylinder is assembled on the back plate, and the output rod of the first linear cylinder is connected to the second limiting roller, and the second limiting roller has a reciprocating translation degree of freedom along the horizontal direction.

[0010] As a further improvement of the present invention, the tape anti-sticking cutting and feeding mechanism includes an upper clamp, a contact roller with a horizontal relative movement degree of freedom, and an upper contact surface. The contact roller has a rotational degree of freedom around its horizontal axis. The circumferential surface of the contact roller has a wavy surface that contacts the adhesive surface of the tape, and the local diameter of the wavy surface varies periodically along the axial direction of the contact roller. The upper contact surface contacts the non-adhesive surface of the tape; a lower clamp, located below the upper clamp, the lower clamp has a vertical movement degree of freedom, the lower clamp has two lower contact surfaces with relative movement degrees of freedom, and the two lower contact surfaces respectively contact the adhesive surface and the non-adhesive surface of the tape. The upper contact surface and the lower contact surface are both vertical planes; a cutter, located between the upper clamp and the lower clamp, the cutter reciprocates periodically and cuts the tape.

[0011] As a further improvement of the present invention, a number of convex points are arrayed on the lower contact surface; the lower clamp is a pneumatic jaw, and the two lower contact surfaces are respectively located on the two fingers of the pneumatic jaw. The contact roller is connected to a back plate with a fixed spatial position through a rotating shaft. The upper contact surface is located on a moving block, and the moving block is connected to a horizontal cylinder, and the horizontal cylinder is assembled with the back plate; the pneumatic jaw is also connected to a vertical cylinder, and the vertical cylinder is assembled with the back plate.

[0012] As a further improvement of the present invention, each ejector rod further includes a transverse arm integrally and perpendicularly connected to the longitudinal arm. The two transverse arms are respectively connected to the two fingers of the pneumatic finger, and the pneumatic finger is connected to a fixing plate; a number of parallel vertical guide posts are also fixed on the fixing plate, and the vertical guide posts pass through the two transverse arms.

[0013] As a further improvement of the present invention, a horizontal guide post passing through a compression spring is also fixed on the fixing plate; the top block has a through hole for the horizontal guide post to pass through, and the through hole is on the same side of the two adsorption surfaces; when the compression spring is in an uncompressed state, the distance between the end face and the fixing plate is less than the distance between the adsorption surface and the fixing plate.

[0014] As a further improvement of the present invention, each adsorption surface has a number of adsorption holes, and the centroid connection line of the adsorption holes on the same adsorption surface is horizontal and perpendicular to the length direction of the longitudinal arm; the included angle range between the inclined cutting surface and the length direction of the longitudinal arm is 20° to 30°; a horizontal extension arm is fixed on the side of the fixing plate facing away from the pneumatic finger, and the extension arm is connected to a linear module, and the movement direction of the linear module is parallel to the length direction of the longitudinal arm. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a top view of the tape placement tray according to an embodiment of the present invention.

[0017] Figure 2 It is a sectional view taken along line A-A of the tape placement tray according to an embodiment of the present invention.

[0018] Figure 3 It is a perspective view of the tape placement tray according to an embodiment of the present invention.

[0019] Figure 4 It is a perspective view of the tape placement tray according to an embodiment of the present invention.

[0020] Figure 5 It is an exploded view of the tape placement tray according to an embodiment of the present invention.

[0021] Figure 6 It is a front view of the tape intermittent feeding mechanism according to an embodiment of the present invention.

[0022] Figure 7 It is a front view of the tape intermittent feeding mechanism according to an embodiment of the present invention.

[0023] Figure 8 It is a perspective view of the tape intermittent feeding mechanism according to an embodiment of the present invention.

[0024] Figure 9 It is a perspective view of the tape intermittent feeding mechanism according to an embodiment of the present invention.

[0025] Figure 10 It is a partially enlarged view at position B of the tape intermittent feeding mechanism according to an embodiment of the present invention.

[0026] Figure 11 It is a front view of the tape anti-sticking cutting feeding mechanism according to an embodiment of the present invention.

[0027] Figure 12 It is a bottom view of the tape anti-sticking cutting feeding mechanism according to an embodiment of the present invention.

[0028] Figure 13 It is a perspective view of the tape anti-sticking cutting feeding mechanism according to an embodiment of the present invention.

[0029] Figure 14 It is a perspective view of the tape anti-sticking cutting feeding mechanism according to an embodiment of the present invention.

[0030] Figure 15 It is a partially enlarged view at position C of the tape anti-sticking cutting feeding mechanism according to an embodiment of the present invention.

[0031] Figure 16It is a partial enlarged view of the D part of the tape anti - sticking cutting and feeding mechanism according to an embodiment of the present invention.

[0032] Figure 17 It is a three - dimensional view of the extrusion and pasting mechanism according to an embodiment of the present invention.

[0033] Figure 18 It is a three - dimensional view of the extrusion and pasting mechanism according to an embodiment of the present invention.

[0034] Figure 19 It is a schematic application diagram of the extrusion and pasting mechanism according to an embodiment of the present invention.

[0035] Figure 20 It is a schematic application diagram of the extrusion and pasting mechanism according to an embodiment of the present invention.

[0036] Figure 21 It is a three - dimensional view of the extrusion and pasting mechanism according to another embodiment of the present invention.

[0037] Figure 22 It is a three - dimensional view of an embodiment of the present invention.

[0038] 1 - moving disk; 1a - circular hollow hole; 1b - radial hollow hole; 2 - static disk; 3 - first fixed seat; 3a - internal corner groove; 3b - counterbore; 4 - sleeve; 4a - circular cylinder; 4b - flange; 4c - axial hole; 5 - fixed sleeve; 6 - fixing ring; 6a - radial hole; 7 - central shaft; 7a - enlarged end; 8 - bottom disk; 9 - receiving groove.

[0039] 10 - tape; 11 - material tray; 12 - back plate; 13 - first linear cylinder; 14 - first limiting roller; 15 - second limiting roller; 16 - third limiting roller; 17 - fourth limiting roller; 18 - slider; 19 - second fixed seat; 20 - guide rod; 21 - external thread; 22 - limiting ring.

[0040] 23 - cutter; 24 - lower clamp; 24a - lower contact surface; 25 - upper clamp; 25a - contact roller; 25b - upper contact surface; 25c - rotating shaft; 27 - vertical cylinder; 28 - horizontal cylinder; 29 - second linear cylinder; 30 - cover plate.

[0041] 31 - ejector rod; 31a - inclined plane; 31b - adsorption hole; 31c - longitudinal arm; 31d - transverse arm; 32 - ejector block; 32a - through hole; 33 - pneumatic finger; 34 - fixing plate; 35 - vertical guide post; 36 - extension arm; 37 - compression spring; 38 - horizontal guide post; 40 - workpiece to be pasted; 41 - linear module; 42 - second fixed seat; 42a - waist - shaped hole. Specific embodiments

[0042] The present invention is further described in detail below in conjunction with specific embodiments:

[0043] In order to achieve the purpose of the present invention, the tape placement disk includes: a sleeve 4; a disk including a movable disk 1 and a static disk 2 which are parallel to each other, the sleeve 4 passes through the movable disk 1 and the static disk 2, and a receiving groove 9 for receiving the tape is formed between the movable disk 1 and the static disk 2; a fixed sleeve 5 is assembled with the outer wall of the sleeve 4 and contacts with the axial end face of one side of the movable disk 1; the movable disk 1 is provided with hollow holes, and the hollow holes include connected circular hollow holes 1a and radial hollow holes 1b; along the viewing angle parallel to the axis of the movable disk 1 itself, the edge of the circular hollow hole 1a is projected The shadow is a major arc, the diameter of which is greater than the diameter of the fixed sleeve 5, and the center of the major arc does not coincide with the center of the moving disc 1; along the viewing angle parallel to the axis of the moving disc 1 itself, the radial hollow hole 1b is projected as a semicircular arc at the edge of the end away from the circular hollow hole 1a, the diameter of the semicircular arc is smaller than the diameter of the fixed sleeve 5, and the center of the semicircular arc coincides with the center of the moving disc 1; along the viewing angle parallel to the axis of the moving disc 1 itself, the two ends of the semicircular arc and the major arc are respectively connected by two line segments, and the line segments are tangent to the semicircular arc; the moving disc 1 is made of transparent material.

[0044] The beneficial effect of adopting the above technical solution is that the wound tape can be accommodated between the moving disc and the static disc, and the subsequent continuous extraction of the tape is convenient. When a new tape needs to be replaced, only the moving disc needs to be removed. The hollow hole improves the efficiency of disassembly and assembly of the moving disc, so that the fixed sleeve used to press the moving disc does not need to be completely removed from the sleeve. It only needs to slightly loosen the fixed sleeve to allow the moving disc to rotate, and then move the moving disc radially to move the circular hollow hole to the vicinity of the fixed sleeve. Then, the moving disc can be pulled out axially, and then the rolled tape is put in, and finally the moving disc is covered. The circular hollow hole eliminates the need for the fixed sleeve to be completely removed, and the relatively narrow width of the radial hollow hole ensures that the fixed sleeve has sufficient extrusion contact area with the moving disc. When the moving disc is fixed to the sleeve, the semicircular arc can play a sufficient role in limiting the movement, ensuring that the moving disc, the static disc, and the sleeve are coaxial, ensuring smooth rotation. The moving disc made of transparent material also facilitates personnel to perceive the remaining amount of internal tape in real time.

[0045] In other embodiments of the present invention, the sleeve 4 includes a circular cylinder 4a in contact with the inner ring of the tape, one end of the circular cylinder 4a has a radially expanded flange 4b, one side axial end surface of the static disk 2 is in contact with the flange 4b, and the diameter of the circular cylinder 4a is equal to the diameter of the semicircular arc.

[0046] The beneficial effect of adopting the above technical solution is that the flange limits the axial movement of the static disk, and limits the static disk to be always fixed in spatial position, and only the moving disk needs to be removed when changing the tape.

[0047] In some other embodiments of the present invention, the circular cylinder 4 a is further provided with an external thread assembled with the fixing sleeve 5 .

[0048] The beneficial effects of adopting the above technical solution are: the threaded connection method is relatively tight, and it is convenient to fine-tune the distance and extrusion force between the moving disc and the static disc.

[0049] In some other embodiments of the present invention, an axially extending central shaft 7 is fixed at the axis of the sleeve 4 , and a first fixing seat 3 is fixed at one end of the central shaft 7 . The first fixing seat 3 is provided with a plurality of countersunk holes 3 b.

[0050] The beneficial effect of adopting the above technical solution is that the fixing seat can be easily contacted and fixed with the external frame.

[0051] In some other embodiments of the present invention, the first fixing seat 3 is provided with a recessed angle groove 3a formed by two vertical surfaces.

[0052] The beneficial effect of adopting the above technical solution is that the internal angle groove improves the stability of fixing to the external frame.

[0053] In other embodiments of the present invention, the end of the central shaft 7 in contact with the first fixed seat 3 has a radially enlarged end 7a, and the distance between the static disc 2 and the enlarged end 7a is smaller than the distance between the dynamic disc 1 and the enlarged end 7a.

[0054] The beneficial effects of adopting the above technical solution are: the expanded section increases the contact area between the central shaft and the base, improving the stability of the central shaft after being fixed. The position of the fixing seat will not affect the disassembly and assembly path of the moving disc.

[0055] In some other embodiments of the present invention, two fixing rings 6 are sleeved on the central shaft 7 , and the two fixing rings 6 are in contact with each other at their axial ends, and one of the fixing rings 6 is in contact with an end of the sleeve 4 away from the flange 4 b.

[0056] The beneficial effect of adopting the above technical solution is that the two fixing rings play a role similar to double nut tightening, preventing the sleeve from being displaced on the central axis.

[0057] In some other embodiments of the present invention, the fixing ring 6 has a plurality of radial holes 6a extending radially therethrough, and screws are inserted into the radial holes 6a.

[0058] The beneficial effect of adopting the above technical solution is that the screw passes through the radial hole, squeezes and fixes the central axis, and limits the positional relationship between the fixing ring and the central axis.

[0059] In some other embodiments of the present invention, the movable disc 1 and the stationary disc 2 are also in contact with a bottom disc 8, the outer edge of the bottom disc 8 is in contact with the inner circle of the wound tape, and the distance between the outer edge of the bottom disc 8 and the axis of the sleeve 4 is less than the maximum distance between the hollow hole and the axis of the sleeve 4.

[0060] The beneficial effects of adopting the above technical solution are as follows: The bottom disc can control the minimum inner diameter of the wound tape, and at the same time, the bottom disc does not completely cover one side of the hollowed-out holes, facilitating personnel to perceive the tape in the placement disc at any time.

[0061] The tape intermittent feeding mechanism includes: a clamping mechanism that clamps one end of the wound tape 10 on the material tray 11; a limiting roller. From the material tray 11 to the clamping mechanism, the tape 10 sequentially contacts the first limiting roller 14, the second limiting roller 15, the third limiting roller 16, and the fourth limiting roller 17 with their respective axes parallel to each other. The first limiting roller 14, the second limiting roller 15, the third limiting roller 16, and the fourth limiting roller 17 alternately contact both sides of the tape 10 one by one. The spatial positions of the first limiting roller 14, the third limiting roller 16, and the fourth limiting roller 17 are fixed, and the second limiting roller 15 has a linear reciprocating translation degree of freedom perpendicular to the connection line direction of the first limiting roller 14 and the third limiting roller 16; the length of the tape 10 tangent to the first limiting roller 14 is always less than the length of the tape 10 tangent to the third limiting roller 16.

[0062] Wherein the material tray 11 is the tape placement tray mentioned above.

[0063] The beneficial effects of adopting the above technical solution are as follows: As the position of the second limiting roller changes, the bending angle and length of the tape limited in a V shape between the first limiting roller, the second limiting roller, and the third limiting roller change. When the second limiting roller moves relatively away from the first limiting roller and the third limiting roller, the bottom angle of the V shape gradually decreases, that is, the length of the sequential connection line of the first limiting roller, the second limiting roller, and the third limiting roller becomes longer. At this time, the tape is pulled out from the material tray, realizing the discharging of the tape from the material tray. When the second limiting roller moves closer to the first limiting roller and the third limiting roller, the bottom angle of the V shape gradually increases, and the pulled-out tape is relatively loose, realizing the feeding in the direction of the fourth limiting roller. The fourth limiting roller is equivalent to the function of a driven fixed pulley, facilitating the determination of the fixed direction of the tape discharging. Because the contact area between the third limiting roller and the tape is large and the bending angle of the tape is small, while the contact area between the first limiting roller and the tape is small and the bending angle of the tape is large, this determines that the frictional force of the tape at the third limiting roller is large, ensuring that the conveying direction of the tape in each cycle is from the first limiting roller to the third limiting roller. Each limiting roller not only plays a role in guiding the tape, but also plays a one-way self-locking role on the tape by bending the tape into a characteristic angular trend. The overall structure is ingenious and the equipment cost is low.

[0064] In some other embodiments of the present invention, the circumferential surface of the limiting roller has a corrugated surface, and the local diameter of the corrugated surface changes periodically along the axial direction of the limiting roller.

[0065] The beneficial effects of adopting the above technical solution are as follows: The wavy surface on the limiting roller can reduce the contact area with the adhesive surface of the tape and reduce the damage to the adhesive surface.

[0066] In some other embodiments of the present invention, the corrugated surface is an external thread on the limiting roller, and two limiting rings 22 are sleeved on the external thread of the fourth limiting roller 17. The distance between the two limiting rings 22 is equal to the width of the tape 10.

[0067] The beneficial effects of adopting the above technical solution are as follows: The threaded section is a form of the corrugated surface, and at the same time, the threaded section is also convenient for threaded connection with the limiting ring. After the threaded connection, the limiting ring can easily fine-tune the distance between the two limiting rings, thereby limiting the width of the tape.

[0068] In some other embodiments of the present invention, a back plate 12 is fixedly provided with the material tray 11, the first limiting roller 14, the second limiting roller 15, the third limiting roller 16, and the fourth limiting roller 17 from top to bottom. The first limiting roller 14 and the third limiting roller 16 are in the same vertical plane of the space.

[0069] The beneficial effects of adopting the above technical solution are as follows: The back plate provides a fixed position for each component, and the positions of the first limiting roller and the third limiting roller correspond up and down, which is convenient for simplifying the movement relationship of each limiting roller.

[0070] In some other embodiments of the present invention, the angle between the length direction of the tape 10 between the third limiting roller 16 and the fourth limiting roller 17 and the length direction of the tape 10 between the second limiting roller 15 and the third limiting roller 16 is always an acute angle, and the angle between the length direction of the tape 10 between the material tray 11 and the first limiting roller 14 and the length direction of the tape 10 between the first limiting roller 14 and the second limiting roller 15 is always an obtuse angle.

[0071] The beneficial effects of adopting the above technical solution are as follows: During the movement of the second limiting roller, it is ensured that the contact area between the third limiting roller and the tape is large, the extrusion force on the tape is relatively large, and the friction force between the tape and the third limiting roller is large. Thus, it is ensured that the transmission of the tape is unidirectional, and the tape is always drawn out from the material tray.

[0072] In some other embodiments of the present invention, the second limiting roller 15 contacts the adhesive surface of the tape 10.

[0073] The beneficial effects of adopting the above technical solution are as follows: Since the second limiting roller will repeatedly squeeze the tape, the adhesive surface of the tape is selected to contact the second limiting roller to minimize the damage to the adhesive surface of the tape.

[0074] In some other embodiments of the present invention, a first linear cylinder 13 is assembled on the back plate 12. A second limiting roller 15 is connected to the output rod of the first linear cylinder 13, and the second limiting roller 15 has a reciprocating translational degree of freedom along the horizontal direction.

[0075] The beneficial effects of adopting the above technical solution are as follows: The linear cylinder has a rapid response, and at the same time, it can conveniently adjust the length of the tape discharged in each cycle, which is a characteristic that traditional intermittent transmission mechanisms such as intermittent gears hardly possess. This technical solution only needs to change the stroke size of the linear cylinder, while the traditional intermittent gear needs to replace parts to achieve the same effect, which is relatively laborious.

[0076] In some other embodiments of the present invention, the output rod is connected to the second limiting roller 15 through a slider 18. Two second fixing seats 19 are further provided on the back plate 12. A guide rod 20 is connected between the two second fixing seats 19, and the guide rod 20 passes through the slider 18.

[0077] The beneficial effects of adopting the above technical solution are as follows: The fixing seat provides fixation for both ends of the guide post, and the guide post can provide guiding and limiting for the movement of the slider, ensuring the stable reciprocating translation of the second limiting roller.

[0078] The first limiting roller 14, the second limiting roller 15, the third limiting roller 16, and the fourth limiting roller 17 each have a rotational freedom about their own axes, and the guide rods 20 are two parallel guide rods 20. As Figure 7 Compared with Figure 6 , the first linear cylinder 13 extends further forward. The clamping mechanism always has a pulling force on the tape 10.

[0079] The tape anti-sticking cutting and feeding mechanism includes: an upper clamp 25, a contact roller 25a and an upper contact surface 25b with horizontally opposite movement freedoms. The contact roller 25a has a rotational freedom about its horizontal axis. The circumferential surface of the contact roller 25a has a wavy surface in contact with the adhesive surface of the tape, and the local diameter of the wavy surface changes periodically along the axial direction of the contact roller 25a. The upper contact surface 25b is in contact with the non-adhesive surface of the tape; a lower clamp 24, located below the upper clamp 25, the lower clamp 24 has a vertical movement freedom, and the lower clamp 24 has two lower contact surfaces 24a with opposite movement freedoms, and the two lower contact surfaces 24a are respectively in contact with the adhesive surface and the non-adhesive surface of the tape. The upper contact surface 25b and the lower contact surface are both vertical planes; a cutter 23, located between the upper clamp 25 and the lower clamp 24, the cutter 23 moves periodically back and forth and cuts the tape.

[0080] The beneficial effects of adopting the above technical solution are as follows: The continuous tape passes through the upper clamp and the lower clamp. The upper clamp and the lower clamp each clamp the tape. The lower clamp can also move downward to straighten the tape. The cutter cuts the continuous tape. The lower clamp continues to move downward to transfer the cut tape, realizing the section-by-section cutting of the continuous tape. At the same time, it is ensured that the adhesion of the upper clamp to the tape is less than that of the lower clamp to the tape. The upper clamp mainly only clamps the tape. When the upper clamp is released, the adhesion effect of the upper clamp on the tape is very weak, which is convenient for the lower clamp to clamp the cut tape and transfer it to the next station. Since the back adhesive surface does not contain adhesive liquid itself, a flat upper contact surface can be used for surface contact. Since the adhesive surface contains adhesive liquid itself, the contact roller in contact with it at most only forms a line contact, which causes little damage to the adhesive surface. At the same time, when the tape is taken away by the lower clamp, the contact roller can also roll adaptively to ensure that the tape smoothly detaches from the upper clamp.

[0081] In some other embodiments of the present invention, the maximum diameter of the wave surface corresponds to the top ring, and each top ring forms a point contact with the adhesive surface of the tape.

[0082] The beneficial effects of adopting the above technical solution are as follows: The existence of the top ring limits that the top of the wave surface does not make surface contact with the adhesive surface of the tape. The wave surface actually forms several point contacts with the adhesive surface, further avoiding the adhesion of the tape to the contact roller.

[0083] In some other embodiments of the present invention, a number of convex points are arrayed on the lower contact surface 24a.

[0084] The beneficial effects of adopting the above technical solution are as follows: The convex points further reduce the contact area between the lower contact surface and the tape, and also prevent the cut tape from sticking too much to the lower clamp. At the same time, the convex points can moderately squeeze and cause the tape to deform, mainly improving the maximum clamping force of the lower clamp, so that the tape is less likely to randomly loosen from the lower clamp when the lower clamp is in the clamped state.

[0085] In some other embodiments of the present invention, the lower clamp 24 is a pneumatic gripper. The two lower contact surfaces 24a are respectively located on the two fingers of the pneumatic gripper. The contact roller 25a is connected to a back plate 4 with a fixed spatial position through a rotating shaft 25c. The upper contact surface 25b is located on a moving block. The moving block is connected to a horizontal cylinder 28, and the horizontal cylinder 28 is assembled with the back plate 4.

[0086] The beneficial effects of adopting the above technical solution are as follows: The pneumatic gripper has two moving fingers, which is suitable as a clamp. The rotating shaft provides the rotational freedom for the contact roller, and the back plate provides a fixed position for each power component. Since the shape of the contact roller with self-rotating ability is relatively complex, it is not suitable to directly select a pneumatic gripper. By moving the moving block and keeping the position of the contact roller stationary, the contact roller and the upper contact surface also have the relative movement ability.

[0087] In some other embodiments of the present invention, the pneumatic gripper is further connected to a vertical cylinder 27, and the vertical cylinder 27 is assembled with the back plate 4.

[0088] The beneficial effect of adopting the above technical solution is that the vertical cylinder provides a vertical movement fixing force for the pneumatic gripper.

[0089] In some other embodiments of the present invention, the plane where the adhesive surface of the tape is located between the upper clamp 25 and the lower clamp 24 is arranged at an angle with the cutting edge of the cutter 23.

[0090] The cutting edge of the cutter 23 is parallel to the horizontal plane at the same time.

[0091] The beneficial effect of adopting the above technical solution is that the cutter and the tape are in real-time point contact instead of instantaneous line contact, reducing the force required for the cutter to cut the tape and ensuring the cutter life.

[0092] In some other embodiments of the present invention, a second linear cylinder 29 is further assembled on the back plate 4. The second linear cylinder 29 applies a linear reciprocating motion to the cutter 23, and a cover plate 30 is further provided above the cutter 23.

[0093] The beneficial effect of adopting the above technical solution is that the linear cylinder provides a moving force for the cutter, and the cover plate can reduce the dust and impurities adhering to the cutter, avoiding the cutter from sticking the dust and impurities to the tape when cutting the tape.

[0094] In some other embodiments of the present invention, the adhesive surface of the tape between the upper clamp 25 and the lower clamp 24 is a vertical plane, and the linear movement direction of the cutter 23 forms an angle with the horizontal plane.

[0095] The beneficial effect of adopting the above technical solution is that on the premise of not affecting the vertical cutting seam effect of the tape, the oblique cutting effect of the cutter is further improved, which is convenient for reducing the maximum force required for cutting.

[0096] The extrusion and sticking mechanism includes: ejector rods 31. Two ejector rods 31 are arranged up and down. Each of the two ejector rods 31 has longitudinal arms 31c that are horizontally parallel. The same end of the two ejector rods 31 has an adsorption surface that contacts the back adhesive surface of the tape and coincides with the same spatial plane. Adsorption holes 31b are provided on the adsorption surface. The adsorption holes 31b are connected to a vacuum generator. The two ejector rods 31 have the freedom to approach or move away from each other; a top block 32 is arranged between the two longitudinal arms 31c. The top block 32 has a linear translation freedom parallel to the length direction of the longitudinal arms 31c. The top block 32 has an end face that contacts the back adhesive surface, and the end face is parallel to the adsorption surface. The top block 32 is connected to a compression spring 37, and the compression spring 37 applies an elastic force to the top block 32 in the direction towards the tape 9; an inclined cutting surface 31a is provided at the junction of the surface of the longitudinal arm 31c facing the top block 32 and the adsorption surface.

[0097] The beneficial effect of adopting the above technical solution is that this adhesive sticking mechanism is suitable for sticking the tape on a non-single plane, and is mainly suitable for sticking on three adjacent vertical planes. The top block corresponds to the middle surface for extrusion and attachment, and the two top rods correspond to the surfaces at the two ends for extrusion and attachment. The three surfaces are pressed firmly by the beveled surfaces and the end surfaces respectively. If there is no planar extrusion effect of the top block, the tape in the middle will be naturally curved due to its own physical properties, and it is not easy to stick it completely to the plane. The beveled surface on the top rod plays the role of squeezing and sticking the two ends of the tape. When taking a piece of tape at the beginning, the upper and lower adsorption surfaces are used, and the adsorption holes use vacuum adsorption of the adhesive backing surface of the tape. When the tape needs to be released after the pasting is completed, it only needs to release the negative pressure. This method is suitable for the turnover of flexible and lightweight tapes. During actual attachment, the two ejector rods adjust the distance between each other to adapt to the height of the object to be attached. When attaching the two ends of the tape, the ejector rod continues to move forward compared to the ejector block. The compression spring provides elastic force for the ejector block to squeeze the tape and also makes room for the ejector rod to move forward.

[0098] In some other embodiments of the present invention, each push rod 31 also includes a transverse arm 31d vertically connected to the longitudinal arm 31c, and the two transverse arms 31d are respectively connected to two fingers of the pneumatic fingers 33, and the pneumatic fingers 33 are connected to the fixing plate 34.

[0099] The beneficial effect of adopting the above technical solution is that the pneumatic finger is naturally equipped with two fingers that can move relative to each other, which are used to connect two push rods, thereby reducing the manufacturing difficulty and the number of power parts.

[0100] In some other embodiments of the present invention, a plurality of parallel vertical guide posts 35 are fixed on the fixing plate 34 , and the vertical guide posts 35 pass through the two horizontal arms 31 d .

[0101] The beneficial effect of adopting the above technical solution is that the vertical guide column plays a guiding role and limits the two top rods to do vertical movement.

[0102] In some other embodiments of the present invention, a horizontal guide column 38 passing through the compression spring 37 is also fixed on the fixing plate 34 .

[0103] The beneficial effect of adopting the above technical solution is that the horizontal guide column plays a guiding role for the compression spring and the top block to prevent the compression spring from tilting.

[0104] In some other embodiments of the present invention, the top block 32 is provided with a through hole 32a for the horizontal guide column 38 to pass through, and the through hole 32a is located on the same side of the two adsorption surfaces.

[0105] The beneficial effect of adopting the above technical solution is that the guide pillars will not become obstacles when the top block retracts, and at the same time the guide pillars are relatively staggered to prevent the fixed-length guide pillars from interfering with the adsorbed tape.

[0106] In some other embodiments of the present invention, when the compression spring 37 is in an uncompressed state, the distance between the end face and the fixed plate 34 is less than the distance between the adsorption surface and the fixed plate 34.

[0107] The beneficial effects of adopting the above technical solutions are as follows: It is ensured that in the initial state, the two adsorption surfaces are first used to contact the adhesive surface of the tape, which is convenient for the vertical straightening of the tape.

[0108] In some other embodiments of the present invention, each adsorption surface is provided with a plurality of adsorption holes 31b, and the centroid connection lines of the adsorption holes 31b on the same adsorption surface are horizontal and perpendicular to the length direction of the longitudinal arm 31c.

[0109] The beneficial effects of adopting the above technical solutions are as follows: Due to the arrangement of the adsorption holes on the two adsorption surfaces, the adsorption method for the tape is ultimately similar to line contact. During the bending process of the tape, the bending degree of the tape at the adsorption holes is limited, preventing the tape from falling off during the bending process.

[0110] In some other embodiments of the present invention, the included angle between the inclined cutting surface 31a and the length direction of the longitudinal arm 31c ranges from 20° to 30°.

[0111] The beneficial effects of adopting the above technical solutions are as follows: The angle of the inclined cutting angle ensures that the guiding and shaping of the tape are relatively smooth, preventing the instantaneous extrusion force on the tape from being too large so as not to damage the tape.

[0112] In some other embodiments of the present invention, a horizontal extension arm 36 is fixed on the side of the fixed plate 34 facing away from the pneumatic finger 33, and the extension arm 36 is connected to a linear module 41, and the moving direction of the linear module 41 is parallel to the length direction of the longitudinal arm 31c.

[0113] The beneficial effects of adopting the above technical solutions are as follows: The extension arm increases the forward extension length of the tape pasting mechanism, and the linear module provides power for the translation of the ejector rod, providing power for the fitting of the tape and the workpiece to be pasted.

[0114] In some other embodiments of the present invention, a third fixing seat 42 assembled with the extension arm 36 is provided on the linear module 41, and a vertical waist-shaped hole 42a is provided on the third fixing seat 42.

[0115] The beneficial effects of adopting the above technical solutions are as follows: The waist-shaped hole can facilitate the fine adjustment of the overall height of the tape pasting mechanism.

[0116] As Figure 19 、 Figure 20 shown, Figure 19 、 Figure 20 the workpiece to be pasted 40 is shown, Figure 19 in which the tape 9 has not been fitted to the workpiece to be pasted 40 yet, and the tape 9 is in a straight state as a whole, Figure 20During the bonding process of the middle tape 9 and the adherend 40, the tape 9 is in a bent state. The actual shapes of the corrugated surface and the wavy surface can be the same.

[0117] The above embodiments are only used to illustrate 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. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. An automatic adhesive pasting device, characterized in that, Comprising: A tape placement reel for storing the wound tape; A tape intermittent feeding mechanism for drawing out the tape from the tape placement reel and performing periodic intermittent feeding on the tape; A tape anti-sticking cutting and feeding mechanism for cutting the tape drawn out by the tape intermittent feeding mechanism, and the cutting period of the tape anti-sticking cutting and feeding mechanism is equal to the intermittent feeding period of the tape intermittent feeding mechanism; An extrusion and pasting mechanism for pasting one end of the tape formed by cutting on the tape anti-sticking cutting and feeding mechanism onto the workpiece to be pasted; The extrusion and pasting mechanism includes a top rod and a top block; two top rods are arranged vertically, each of the two top rods has a longitudinal arm that is horizontally parallel, and the same end of the two top rods has an adsorption surface that contacts the back adhesive surface of the tape and coincides with the same spatial plane. The adsorption surface is provided with adsorption holes, and the adsorption holes are connected to a vacuum generator. The two top rods have the freedom to approach or move away from each other; The top block is arranged between the two longitudinal arms. The top block has a linear translation freedom parallel to the length direction of the longitudinal arm. The top block has an end face that contacts the back adhesive surface, and the end face is parallel to the adsorption surface. The top block is connected to a compression spring, and the compression spring applies an elastic force to the top block in the direction towards the tape; The intersection of the surface of the longitudinal arm facing the top block and the adsorption surface has an inclined section; The tape placement reel includes a sleeve; a disc, including a moving disc and a static disc that are parallel to each other. The sleeve passes through the moving disc and the static disc, and a receiving groove for receiving the tape is formed between the moving disc and the static disc; a fixing sleeve, which is assembled with the outer wall of the sleeve and contacts one side axial end face of the moving disc; the moving disc is provided with a hollow hole, and the hollow hole includes a connected circular hollow hole and a radial hollow hole; from the perspective parallel to the axis of the moving disc itself, the edge projection of the circular hollow hole is a major arc, the diameter of the major arc is larger than the diameter of the fixing sleeve, and the center of the major arc does not coincide with the center of the moving disc; from the perspective parallel to the axis of the moving disc itself, the edge projection of the radial hollow hole at the end away from the circular hollow hole is a semi-circular arc, the diameter of the semi-circular arc is smaller than the diameter of the fixing sleeve, and the center of the semi-circular arc coincides with the center of the moving disc; from the perspective projection parallel to the axis of the moving disc, the two ends of the semi-circular arc and the major arc are respectively connected by two line segments, and the line segments are tangent to the semi-circular arc; the moving disc is made of a transparent material; The tape anti-sticking cutting and feeding mechanism includes an upper clamp, a contact roller and an upper contact surface with a horizontally opposite movement freedom. The contact roller has a rotation freedom around its horizontal axis. The circumferential surface of the contact roller has a wavy surface that contacts the adhesive surface of the tape, and the local diameter of the wavy surface changes periodically along the axial direction of the contact roller. The upper contact surface contacts the back adhesive surface of the tape; a lower clamp, located below the upper clamp, the lower clamp has a vertical movement freedom, the lower clamp has two lower contact surfaces with an opposite movement freedom, and the two lower contact surfaces respectively contact the adhesive surface and the back adhesive surface of the tape. The upper contact surface and the lower contact surface are both vertical planes; a cutter, located between the upper clamp and the lower clamp, and the cutter moves periodically back and forth to cut the tape; Each push rod also includes a transverse arm vertically connected to the longitudinal arm, the two transverse arms are respectively connected to two fingers of the pneumatic finger, and the pneumatic finger is connected to a fixed plate; a plurality of parallel vertical guide columns are also fixed on the fixed plate, and the vertical guide columns pass through the two transverse arms.

2. The automatic gluing device according to claim 1, characterized in that: The intermittent tape feeding mechanism includes a clamping mechanism, which clamps one end of the tape wound on the tape placement disk; a limiting roller, from the tape placement disk to the clamping mechanism, the tape sequentially contacts a first limiting roller, a second limiting roller, a third limiting roller, and a fourth limiting roller, whose axes are parallel to each other, the first limiting roller, the second limiting roller, the third limiting roller, and the fourth limiting roller contact the two sides of the tape alternately one by one, the spatial positions of the first limiting roller, the third limiting roller, and the fourth limiting roller are fixed, the second limiting roller has a linear reciprocating translation freedom perpendicular to the direction of the line connecting the first limiting roller and the third limiting roller; the length of the tape circumscribed by the first limiting roller is always smaller than the length of the tape circumscribed by the third limiting roller.

3. The automatic gluing device according to claim 2, wherein: The circumferential surface of the limiting roller is provided with a corrugated surface, and the local diameter of the corrugated surface varies periodically along the axial direction of the limiting roller; the corrugated surface is the external thread on the limiting roller, and two limiting rings are sleeved on the external thread of the fourth limiting roller, and the spacing between the two limiting rings is equal to the width of the tape.

4. The automatic gluing device according to claim 3, characterized in that: The tape placement plate, the first limiting roller, the second limiting roller, the third limiting roller and the fourth limiting roller are fixed with a back plate from top to bottom, and the first limiting roller and the third limiting roller are located on the same vertical plane of the space; a first linear cylinder is mounted on the back plate, and a second limiting roller is connected to the output rod of the first linear cylinder, and the second limiting roller has the freedom of reciprocating translation in the horizontal direction.

5. The automatic gluing device according to claim 1, wherein: There are several convex points arrayed on the lower contact surface; the lower clamp is a pneumatic clamp, and the two lower contact surfaces are respectively located on the two fingers of the pneumatic clamp; the contact roller is connected to a back plate with a fixed spatial position through a rotating shaft; the upper contact surface is located on a moving block, and the moving block is connected to a horizontal cylinder, and the horizontal cylinder is assembled with the back plate; the pneumatic clamp is also connected to a vertical cylinder, and the vertical cylinder is assembled with the back plate.

6. The automatic gluing device according to claim 1, characterized in that: A horizontal guide column passing through the compression spring is also fixed on the fixed plate; the top block is provided with a through hole for the horizontal guide column to pass through, and the through hole is located on the same side of the two adsorption surfaces; when the compression spring is not under pressure, the distance between the end surface and the fixed plate is smaller than the distance between the adsorption surface and the fixed plate.

7. The automatic gluing device according to claim 6, characterized in that: Each adsorption surface is provided with a number of adsorption holes, and the centroid line of the adsorption holes on the same adsorption surface is horizontal and perpendicular to the length direction of the longitudinal arm; the angle between the bevel surface and the length direction of the longitudinal arm is in the range of 20° to 30°; the fixed plate is fixed with a horizontal extension arm on the side away from the pneumatic finger, and the extension arm is connected to a linear module, and the movement direction of the linear module is parallel to the length direction of the longitudinal arm.

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