Cutting and tape sticking device and rewinding machine

Abstract

The utility model provides a cutting and tape sticking device and a rewinding machine, the cutting and tape sticking device comprises a rewinding disc, a first driving unit, a cutter, a tape sticking structure, a supporting structure, a second driving unit and a pressure head, the circumferential position of the rewinding disc is provided with a rewinding shaft, the cutting and tape sticking device is provided with a waiting station, a cutting station and a rewinding station, the cutter is opposite to the cutting station, and the tape sticking structure is arranged on the rewinding shaft. The rubberizing structure is opposite to the waiting station; the supporting structure comprises a first supporting part and a second supporting part, and the cutting station, the first supporting part and the second supporting part are sequentially arranged between the waiting station and the rewinding station; the first driving unit drives the pressing head to move, and the second driving unit drives the cutter to move; the pressing head comprises a rubberizing structure and a pressing structure which are located on the two sides of the cutter. In the cutting direction, the abutting structure is opposite to the first supporting part, and the second supporting part is provided with a negative pressure adsorption opening. The rewinding machine comprises the cutting and tape sticking device. The rewinding quality of the thermal transfer ribbon is improved, and particularly the winding quality of the tail section of the thermal transfer ribbon is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automated production, in particular to an improved cutting and taping device and a rewinding machine for winding soft thin ribbons such as carbon ribbons. Background Art

[0002] An existing rewinding machine for tape rewinding includes a cutting and taping device, which includes a rewinding disk, a cutter and a gluing structure. The rewinding disk can rotate around a first axis under the drive of a motor. At least three rewinding shafts are arranged on the circumferential position of the rewinding disk. The rewinding shafts can be driven independently and rotate around a second axis. In this way, the rewinding disk can transfer each rewinding shaft to a rewinding station. After the core for winding the tape is mounted on the rewinding shaft, the carbon tape can be rewound as the rewinding shaft rotates. The cutter and the gluing structure are driven by a linear drive unit and arranged on the periphery of the rewinding disk.

[0003] When the reel at the rewinding station is finished rewinding, the cutter is driven to cut the tail of the reel that has been rewound from the waiting station and the lead-out end of the master tape. At the same time, the glue-sticking structure is pressed down so that the lead-out end of the master tape is attached to the waiting reel. Then the rewinding disk rotates to transfer the reel with the tape to the rewinding station and start winding, and the cycle continues.

[0004] The existing rewinding machine is actually used for rewinding pure tape. Of course, it can also be used for rewinding carbon tape with adhesive tape. The carbon tape sent to the rewinding station has at least been glued with adhesive tape at the lead-out end of the tape, so that the carbon tape can be fixed to the surface of the roll core by the adhesiveness of the tape. One method is to cut the carbon tape before rewinding and reconnect the two carbon tape segments with adhesive tape segments, with the adhesive tape as the incision, so that there is adhesive tape at the end of the previous carbon tape roll and at the front of the next carbon tape roll.

[0005] However, the problem with the existing rewinding machine when used for rewinding carbon ribbons is that, unlike thicker and harder adhesive tapes, the soft and thin carbon ribbon has a longer extension section extending from the rewinding station to the waiting station before being cut. After the carbon ribbon is subjected to the cutting force, it will shrink, deform and shake, resulting in poor winding quality of the tail section. Utility Model Content

[0006] The first purpose of the utility model is to provide a cutting and taping device for improving the winding quality of a soft and thin ribbon such as a carbon ribbon.

[0007] The second object of the utility model is to provide a rewinding machine for improving the winding quality of soft and thin ribbons such as carbon ribbons.

[0008] The first object of the utility model provides a cutting and taping device comprising a rewinding disk, a first driving unit, a cutting knife and a gluing structure, the rewinding disk being rotatable around a first axis, at least two rewinding shafts being rotatable around respective second axes being arranged at circumferential positions of the rewinding disk, the cutting and taping device being provided with a waiting station, a rewinding station and a cutting station located between the waiting station and the rewinding station, the rewinding disk being rotatable to transfer the rewinding shaft from the waiting station to the rewinding station, along the cutting direction, the cutting knife being opposite to the cutting station, and the gluing structure being opposite to the waiting station; the cutting and taping device also comprises a supporting structure, a second driving unit and a pressing head; the supporting structure comprises a first The support part and the second support part, the first support part, the second support part, the waiting station and the rewinding station are arranged on the same plane, and the cutting station, the first support part and the second support part are arranged in sequence between the waiting station and the rewinding station; the first driving unit drives the pressure head to move, and the second driving unit is connected to the pressure head, and the second driving unit drives the lower cutter to move relative to the pressure head along the cutting direction; the glue structure is arranged on the pressure head, and the pressure head includes a pressing structure, and the pressing structure and the glue structure are located on opposite sides of the cutter; along the cutting direction, the pressing structure is opposite to the first supporting surface of the first supporting part, and the second supporting surface of the second supporting part is provided with a negative pressure adsorption port.

[0009] It can be seen from the above scheme that before the cutter falls to cut the ribbon, the extended section of the carbon ribbon extending from the rewinding station to the waiting station will be adsorbed and stabilized by the second support part, and the pressure head presses down to press the portion of the carbon ribbon extended section on one side of the incision onto the first support part, while on the other side of the incision, the carbon ribbon will be pressed onto the winding core of the waiting station by the adhesive structure. In this way, when the carbon ribbon is cut, the carbon ribbon sections on both sides of the incision are stabilized, and the longer section is fixed by extrusion and adsorption at the same time, further ensuring that it will not shrink, deform, shake, and other problems when subjected to cutting force. It can be seen that the utility model improves the quality of carbon ribbon rewinding, especially improves the winding quality of the tail section of the carbon ribbon.

[0010] A further solution is that the tape cutting and taping device further comprises a third driving unit, and driven by the third driving unit, the supporting structure can move axially along the first axis and away from the rewinding disk.

[0011] As can be seen from the above, under this arrangement, when the tape cutting operation is not performed, the third driving unit drives the supporting structure to leave the rewinding disk, thereby preventing the supporting structure located between the two rewinding shafts on the rewinding disk from interfering with the rotation of the rewinding disk.

[0012] A further solution is that the tape cutting and taping device also includes a rotation-stopping structure, which limits the rotation of the rewinding shaft in the waiting station; driven by the third driving unit, the rotation-stopping structure can move and release the rotation restriction on the rewinding shaft.

[0013] As can be seen from the above, under this setting, the anti-rotation structure is in place at the same time as the supporting structure. When cutting the tape, the anti-rotation structure will inhibit the rotation of the rewinding shaft at the waiting station, thereby ensuring that the tape sticking structure can firmly stick the tape part to the rewinding shaft.

[0014] Another further solution is that the anti-rotation structure includes a floating friction member, and in the axial direction, the end of the friction member is frictionally matched with the end of the rewinding shaft.

[0015] As can be seen from the above, under this setting, there is no need to add a matching structure such as a clutch part on the rewinding shaft, and the anti-rotation effect can be achieved by only abutting the friction member with a high friction coefficient against the rewinding shaft. This setting method of the anti-rotation structure has good versatility, and the floating setting can produce a buffering effect to avoid hard contact, thereby better protecting the rewinding shaft and the winding core and materials on the shaft.

[0016] A further solution is that the support structure further comprises a rib portion, which protrudes from the second support surface, and in the axial direction of the first axis, the rib portion blocks the second support surface from the side opposite to the rewinding disc.

[0017] As can be seen from the above, under this setting, in addition to supporting the carbon ribbon from the thickness direction of the elastic ribbon, the retaining edge can also limit the left and right shaking of the carbon ribbon from the width direction of the carbon ribbon, further limiting the carbon ribbon and avoiding the occurrence of skewing.

[0018] A further solution is that, in the axial projection of the first axis: the extended surface of the first supporting surface passes through the cross section of the rewinding shaft of the waiting station, and / or the extended surface of the second supporting surface is located outside the cross section of the rewinding shaft of the rewinding station.

[0019] As can be seen from the above, mainly, this setting makes the position of the first supporting surface closer to the cutting position, and / or makes the second supporting surface more consistent with the tape running trajectory between the waiting station, the cutting station and the rewinding station, ensuring that the cutting action is facilitated and the tape running is smooth.

[0020] A further solution is that a gap is formed between the first supporting portion and the second supporting portion, and the supporting structure includes a recessed position arranged at the gap, and the recessed position is recessed in the first supporting surface and the second supporting surface.

[0021] As can be seen from the above, the interval mainly plays a role of avoiding. When the pressing structure presses down the carbon ribbon, the carbon ribbon section between the second supporting part and the first supporting cloth part will swing down, so the recessed position is provided to avoid damaging the carbon ribbon.

[0022] A further solution is that the pressing head includes a first pressing part and a second pressing part which are arranged opposite to each other, and the glue structure and the pressing structure are respectively located at the end of the first pressing part and the end of the second pressing part; the pressing head forms a slit which passes through the first pressing part and the second pressing part along the cutting direction, and the cutting knife is arranged in the slit.

[0023] As can be seen from the above, the setting of the slit can not only limit and protect the cutter, but also prevent the blade from being exposed in the non-working state to eliminate unnecessary dangers. More importantly, under this setting, the cutter is ensured to be located between the left and right pressing parts, and the cutting action is carried out more smoothly.

[0024] A further solution is that the adhesive structure includes a concave arc surface, and / or the surface contour of the pressing structure matches the contour of the first supporting surface.

[0025] As can be seen from the above, under this setting, the contact surface between the adhesive structure and the winding core is more closely fitted, ensuring that the adhesive tape is adhered to the winding core to a greater extent, and the matching of the pressing structure and the first supporting surface profile can effectively clamp the carbon ribbon.

[0026] The second object of the present invention is to provide a rewinding machine comprising the above-mentioned cutting and taping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of the first state of the tape cutting and taping device embodiment of the utility model, with the rewinding reel hidden and viewed from a first viewing angle.

[0028] Figure 2 This is a structural diagram of the cutting and taping device of the utility model in the first state with the rewinding reel hidden from the second viewing angle.

[0029] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0030] Figure 4 for Figure 1 Enlarged view of point B in the middle.

[0031] Figure 5 It is an axial schematic diagram of the rewinding disk of the embodiment of the cutting and taping device of the utility model.

[0032] Figure 6 It is an axial view of the first state of the embodiment of the cutting and taping device of the utility model.

[0033] Figure 7 It is an axial view of the second state of the embodiment of the cutting and taping device of the utility model.

[0034] Figure 8 It is a partially enlarged view of the second state of the embodiment of the tape cutting device of the utility model. DETAILED DESCRIPTION

[0035] See also Figure 1 , Figure 2 and Figure 7 , the x-axis direction in the coordinate system is the first axis 80 ( Figure 8), the z-axis direction is the vertical direction, which is also the cutting direction of the present invention, and the y-axis direction is the horizontal direction, which is also the direction of the straight line connecting the waiting station 101 and the rewinding station 102 in this embodiment.

[0036] See also Figure 1 and Figure 2 The rewinding machine of the utility model includes a tape cutting device. The parts other than the rewinding disc 81 in the device are first described. The tape cutting device includes Figure 7 But Figure 1 and Figure 2 The rewinding disc 81, which is not shown in the figure, further includes a first driving unit 11, a second driving unit 12, a third driving unit 13, a pressure head 2, a cutter 3, a support structure 4 and a rotation-stopping structure 5. In this embodiment, the first driving unit 11 and the second driving unit 12 are both cylinders arranged along the z-axis direction, and the third driving unit is a cylinder arranged along the x-axis direction.

[0037] The main body of the first driving unit 11 is fixedly arranged, and the pressure head 2 is connected to the output end of the first driving unit 11. Therefore, under the drive of the first driving unit 11, the pressure head 2 can reciprocate along the z-axis direction; the main body of the second driving unit 12 is fixedly installed on the top of the pressure head 2, and the cutter 3 and related connecting parts are connected to the downward output end of the second driving unit 12. Under the drive of the second driving unit 12, the cutter 3 can reciprocate relative to the pressure head 2 along the z-axis direction and can extend to the bottom of the pressure head 2. The main body of the third driving unit 13 is fixedly arranged, and the support structure 4 and the anti-rotation structure 5 are both connected to the output end of the third driving unit 13. Under the drive of the third driving unit 13, the support structure 4 and the anti-rotation structure 5 can be driven to move synchronously along the x-axis direction.

[0038] Combination Figure 3 Next, the structure of the press head 2 is described. The press head 2 includes a first pressing portion 21 and a second pressing portion 22 which are arranged opposite to each other along the y-axis direction. The adhesive structure 211 and the pressing structure 221 are respectively located at the lower end of the first pressing portion 21 and the lower end of the second pressing portion 22. The press head 2 forms a slit 23 which passes through along the z-axis direction, i.e., along the cutting direction, between the first pressing portion 21 and the second pressing portion 22. The cutter 3 is arranged in the slit 23. Further, in the present embodiment, the adhesive structure 211 includes an inner concave arc surface at the lower end of the first pressing portion 21, and the pressing structure 221 includes a plane at the lower end of the second pressing portion 22.

[0039] Combination Figure 4 Next, the structure of the support structure 4 is described. In this embodiment, the support structure 4 is a metal component, and the support structure 4 includes a first support portion 41, a spacer, and a second support portion 42 sequentially arranged along the y-axis direction, and the spacer is provided with a recess 43.

[0040] A first supporting surface 410 is provided on the upper side of the first supporting portion 41. The first supporting surface 410 is a horizontal surface. The first supporting surface 410 matches the contour of the plane of the lower end of the second pressing portion 22. A second supporting surface 420 is provided on the upper side of the second supporting portion 42. The second supporting surface 420 is a plane inclined to the horizontal. Figure 1 In the positive direction of the y-axis, the second support surface 420 extends upward from the lowest point closest to the first support surface 410 to the highest point farthest from the first support surface 410, and an array of negative pressure adsorption ports 421 are arranged on the second support surface 420. In addition, the concave position 43 is concave downward in the first support surface 410 and the second support surface 420.

[0041] Recombination Figure 2 and Figure 4 , the pressure head 2 is located directly above the support structure 4, and along the z-axis direction, the pressing structure 221 is opposite to the first support surface 410 of the first support portion 41. In addition, the support structure 4 also includes a rib portion 44, which protrudes from the edge of the second support surface 420 in the negative direction of the x-axis. When cutting the ribbon, after the support structure 4 is in place, in the axial direction of the first axis 80, the rib portion 44 and the rewinding disk 81 block the carbon ribbon on the second support surface 420 from opposite sides in the x-axis direction.

[0042] Continue to see Figure 4 The anti-rotation structure 5 is a columnar structure extending in the x-axis direction. The axial end of the anti-rotation structure 5 is provided with a friction member 51 floatingly arranged in the x-axis direction. The friction member 51 has an axial end surface with a large friction coefficient. Furthermore, the friction member 51 is floatingly arranged by a spring. Furthermore, the friction member 51 is made of rubber material, silicone material or sponge material. Figure 3 The axis center of the anti-rotation structure 51 coincides with the center center of the inner concave arc surface of the adhesive structure 211 .

[0043] See also Figure 5 The rewinding disc 81 is rotatable around the first axis 80, and three rewinding shafts rotatable around their respective second axes and evenly distributed are arranged on the circumferential position of the rewinding disc 81: the first rewinding shaft 821, the second rewinding shaft 822 and the third rewinding shaft 823. The cutting and taping device is provided with a waiting station 101, a cutting station 103 and a rewinding station 102 arranged in sequence along the positive direction of the y-axis. The rewinding disc 81 can be rotated to transfer any rewinding shaft from the waiting station 101 to the rewinding station 102.

[0044] Figure 5As shown, the first rewinding shaft 821 is in the waiting station 101, the second rewinding shaft 822 is in the rewinding station 102, the second rewinding shaft 822 of the rewinding station 102 is equipped with a second winding core 922, the first rewinding shaft 821 of the waiting station 101 is equipped with a first winding core 921, and the carbon ribbon 91 that has been subjected to the tape bonding process is wound on the second winding core 922 of the rewinding station 102 and passes through the first winding core 921 of the waiting station 101. In this embodiment, the waiting station 101 and the rewinding station 102 are at the same level.

[0045] Recombination Figure 2 and Figure 6 , the rewinding disc 81 is arranged relative to the support structure 4 and the anti-rotation structure 5 along the x-axis direction, the axis of the anti-rotation structure 51 coincides with the second axis of the rewinding shaft 921 at the waiting station 102. It can be seen from the projection along the x-axis direction that along the y-axis direction, the waiting station 101, the cutting station 103, the first support part 41, the second support part 42 and the rewinding station 102 are arranged in sequence. Figure 7 When the third driving unit 13 drives the supporting structure 4 and the anti-rotation structure 5 to move to the position closest to the turntable 81, the first supporting portion 41, the second supporting portion 42, the waiting station 101, the cutting station 103 and the rewinding station 102 are coplanar, specifically, they are coplanar on the plane where the y-axis and the z-axis are located, and at this time, the extension section of the carbon ribbon 91 between the first rewinding shaft 821 and the second rewinding shaft 822 will sequentially pass through the cutting position 103, the first supporting surface 410 and the second supporting portion 420. In addition, at this time, the end of the friction member 51 of the anti-rotation structure 5 is frictionally matched with the end of the second rewinding shaft 822.

[0046] Recombination Figure 7 and Figure 8 When the tape needs to be cut, the first driving unit 11 is first controlled to press the pressure head 2 downward, and the adhesive structure 211 presses and pastes the tape on one side of the cutting position 103 onto the first winding core 821 of the waiting station 101, while on the other side of the cutting position 103, the pressing structure 221 cooperates with the first supporting part 41 to press the carbon ribbon 91, and the second supporting part 42 sucks the carbon ribbon 91. Then the second driving unit 12 is controlled to make the cutter 3 fall and the cutting position 103 can cut the carbon ribbon 91. After the cutting is completed and the winding of the second winding core 922 is completed, the third driving unit 13 can be controlled to move the supporting structure 4 and the anti-rotation structure 5 along the x-axis direction and away from the rewinding disk 81.

[0047] In this way, when the carbon ribbon 91 is cut, the carbon ribbon parts on both sides of the cut are stabilized, and the longer part is fixed by extrusion and adsorption at the same time, further ensuring that it will not shrink, deform, shake, etc. when subjected to the cutting force. It can be seen that the utility model improves the rewinding quality of the carbon ribbon, especially improves the winding quality of the tail section of the carbon ribbon.

[0048] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tape cutting and taping device, comprising a rewinding disk, a first driving unit, a cutter and a glue sticking structure, wherein the rewinding disk is rotatable around a first axis, at least two rewinding shafts rotatable around respective second axes are arranged at circumferential positions of the rewinding disk, the tape cutting and taping device is provided with a waiting station, a rewinding station and a cutting station located between the waiting station and the rewinding station, the rewinding disk can rotate to transfer the rewinding shaft from the waiting station to the rewinding station, along the cutting direction, the cutter is opposite to the cutting station, and the glue sticking structure is opposite to the waiting station; Features: The cutting and taping device further comprises a supporting structure, a second driving unit and a pressing head; The support structure comprises a first support portion and a second support portion, the first support portion, the second support portion, the waiting station and the rewinding station are arranged on the same plane, and the cutting station, the first support portion and the second support portion are arranged in sequence between the waiting station and the rewinding station; The first driving unit drives the pressure head to move, the second driving unit is connected to the pressure head, and the second driving unit drives the lower cutter to move relative to the pressure head along the cutting direction; The adhesive structure is arranged on the pressure head, and the pressure head comprises a pressing structure, and the pressing structure and the adhesive structure are located on two opposite sides of the cutter; Along the cutting direction, the pressing structure is opposite to the first supporting surface of the first supporting portion, and the second supporting surface of the second supporting portion is provided with a negative pressure adsorption port.

2. The tape cutting device according to claim 1, characterized in that: The tape cutting and taping device further comprises a third driving unit. Driven by the third driving unit, the supporting structure can move along the axial direction of the first axis and away from the rewinding disk.

3. The tape cutting device according to claim 2, characterized in that: The cutting and taping device further comprises a rotation-stopping structure, which restricts the rotation of the rewinding shaft in the waiting station; Driven by the third driving unit, the anti-rotation structure can move and release the rotation restriction on the rewinding shaft.

4. The tape cutting device according to claim 3, characterized in that: The anti-rotation structure comprises a friction member which is arranged in a floating manner. In the axial direction, an end of the friction member is frictionally matched with an end of the rewinding shaft.

5. The tape cutting device according to any one of claims 1 to 4, characterized in that: The support structure further comprises a rib portion, which protrudes from the second support surface. In the axial direction of the first axis, the rib portion blocks the second support surface from a side opposite to the rewinding disk.

6. The tape cutting device according to any one of claims 1 to 4, characterized in that: On the axial projection of the first axis: The extended surface of the first supporting surface passes through the cross section of the rewinding shaft of the waiting station, and / or the extended surface of the second supporting surface is located outside the cross section of the rewinding shaft of the rewinding station.

7. The tape cutting device according to any one of claims 1 to 4, characterized in that: A gap is formed between the first supporting portion and the second supporting portion, and the supporting structure includes a concave portion arranged at the gap, and the concave portion is sunken into the first supporting surface and the second supporting surface.

8. The tape cutting device according to any one of claims 1 to 4, characterized in that: The pressure head comprises a first pressing portion and a second pressing portion which are arranged opposite to each other, and the adhesive structure and the pressing structure are respectively located at the end of the first pressing portion and the end of the second pressing portion; The pressing head forms a slit penetrating along the cutting direction between the first pressing portion and the second pressing portion, and the cutting blade is arranged in the slit.

9. The tape cutting device according to claim 8, characterized in that: The adhesive structure includes a concave arc surface, and / or the surface contour of the pressing structure matches the contour of the first supporting surface.

10. Rewinding machine, characterized in that, The invention comprises the tape cutting device as described in any one of claims 1 to 9.

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