Automatic roll changing mechanism and gumming device

Abstract

The present application relates to the field of rubberizing equipment, in particular to an automatic roll changing mechanism and a rubberizing device. The automatic roll changing mechanism comprises a workbench, a material preparation unit, a rotating unit, a detection unit and a material clamping unit. The material preparation unit is connected with the workbench and is used for placing at least one standby material roll. The rotating unit is used for clamping the material roll, and the rotating unit is movably connected with the workbench along a first preset direction and has a material loading position for loading the material roll and a material unloading position for removing the material roll. The detection unit is connected with the rotating unit and is used for detecting the remaining amount of the material roll clamped on the rotating unit. The material clamping unit is movably connected with the workbench along the first preset direction and has a material clamping position for clamping the material roll in the material preparation unit and a material feeding position for loading the clamped material roll into the rotating unit at the material loading position. The automatic roll changing mechanism can improve the efficiency of roll changing, thereby shortening the time of roll changing and further shortening the time of roll changing downtime, thereby improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rubberizing equipment, in particular to an automatic roll changing mechanism and a rubberizing device. BACKGROUND

[0002] In the prior art, the rubberizing equipment needs to be configured with a staff on duty to change the roll when the rubber paper is used up, which cannot realize automatic roll changing, resulting in high cost and low efficiency of roll changing. In addition, the long downtime for roll changing reduces the production efficiency. SUMMARY

[0003] The present application aims to provide an automatic roll changing mechanism and a rubberizing device, which can reduce the number of staff on duty, reduce the labor intensity of the staff on duty, improve the efficiency of roll changing, shorten the time of roll changing, and further shorten the downtime for roll changing, thereby improving the production efficiency.

[0004] The embodiments of the present application can be implemented as follows:

[0005] In a first aspect, the present application provides an automatic roll changing mechanism, which comprises a workbench, a standby material unit, a rotating unit, a detection unit and a material clamping unit.

[0006] The standby material unit is connected with the workbench and is used to place at least one standby material roll; the rotating unit is used to clamp the material roll, and the rotating unit is movably connected with the workbench along a first preset direction and has a material loading position for loading the material roll and a material unloading position for unloading the material roll; the detection unit is connected with the rotating unit and is used to detect the remaining amount of the material roll clamped on the rotating unit; and the material clamping unit is movably connected with the workbench along the first preset direction and has a material clamping position for clamping the material roll in the standby material unit and an upper material loading position for loading the clamped material roll into the rotating unit at the material loading position.

[0007] In an optional embodiment, the automatic roll changing mechanism further comprises a pressing head movably connected with the rotating unit along a second preset direction and having a pressing position and a spacing position; wherein the first preset direction is perpendicular to the second preset direction.

[0008] When the pressing head is at the pressing position, the pressing head is used to press the material roll clamped on the rotating unit to limit the movement of the material roll in a direction away from the rotating unit; and when the pressing head is at the spacing position, the pressing head is spaced from the rotating unit, and the spacing area between the rotating unit and the pressing head is used to pass the material roll.

[0009] In an optional embodiment, the automatic roll changing mechanism further comprises a first driving unit, a second driving unit and a third driving unit.

[0010] The first driving unit is configured to drive the rotating unit to move along a first preset direction between the loading position and the unloading position; the second driving unit is configured to drive the clamping unit to move along the first preset direction between the clamping position and the feeding position; and the third driving unit is configured to drive the pressing head to move along a second preset direction between the pressing position and the spacing position.

[0011] In an optional embodiment, the automatic roll changing mechanism further comprises a cutting unit and a fourth driving unit; and the rotating unit comprises an air expansion shaft and a motor configured to drive the air expansion shaft to rotate.

[0012] The cutting unit is movably connected to the workbench along a third preset direction, and the fourth driving unit is configured to drive the cutting unit to move along the third preset direction and has a feeding position and a cutting position; and the first preset direction, the second preset direction and the third preset direction are perpendicular to each other.

[0013] When the cutting unit is in the feeding position, the cutting unit is configured to receive the external adhesive tape; and when the cutting unit is in the cutting position, the cutting unit is configured to cut the adhesive tape.

[0014] In an optional embodiment, the cutting unit comprises a main body, a cutting part and a fifth driving unit.

[0015] The main body is movably connected to the workbench along the third preset direction, and the fourth driving unit is configured to drive the main body to move between the feeding position and the cutting position, and the main body is provided with a passage for the adhesive tape to pass through.

[0016] The cutting part is movably connected to the main body along the second preset direction, and the fifth driving unit is configured to drive the cutting part to move along the second preset direction and has a passing position and a cutting position; when the cutting part is in the passing position, the cutting part is above the passage to open the passage and allow the external adhesive tape to move into the passage; and when the cutting part is in the cutting position, the cutting part is configured to cut the adhesive tape.

[0017] In an optional embodiment, the automatic roll changing mechanism further comprises an attaching rod connected to the standby material unit, and the attaching rod is configured to attach the free end of the roll of material in the standby material unit.

[0018] In an optional embodiment, the automatic roll changing mechanism further comprises a tape threading clamp jaw and a sixth driving unit.

[0019] The tape threading clamp jaw is movably connected to the workbench or the standby material unit along the first preset direction, and the sixth driving unit is configured to drive the tape threading clamp jaw to move along the first preset direction and has a clamping position and a threading position.

[0020] When the threading gripper is in the threading position, the threading gripper is used to clamp the free end of the material roll attached to the attachment rod; when the threading gripper is in the threading position, the adhesive tape between the threading gripper and the inflatable shaft is moved into the channel, and the main body is in the upper tape position, and the cutting part is in the passing tape position.

[0021] In an optional embodiment, the automatic roll changing mechanism further comprises a seventh driving unit and at least one tensioning rod, the tensioning rod is movably connected with the main body along the second preset direction, and the seventh driving unit is used to drive the tensioning rod to move along the second preset direction, so as to tension the adhesive tape between the cutting unit and the inflatable shaft.

[0022] In an optional embodiment, the detection unit comprises a reflective optical fiber sensor.

[0023] In a second aspect, the present application provides a taping device, which comprises a taping unit and the automatic roll changing mechanism described above.

[0024] The taping unit comprises a suction nozzle, which is located below the channel and directly opposite the cutting part, and is used to suck the adhesive tape cut by the cutting part and make the cut adhesive tape adhere to the target material located below the suction nozzle.

[0025] The beneficial effects of the embodiments of the present application include:

[0026] The automatic roll changing mechanism comprises a workbench, a material preparation unit, a rotating unit, a detection unit and a material clamping unit; the material preparation unit is connected with the workbench and is used to place at least one spare material roll; the rotating unit is used to clamp the material roll, and the rotating unit is movably connected with the workbench along a first preset direction and has a loading position for loading the material roll and an unloading position for removing the material roll; the detection unit is connected with the rotating unit and is used to detect the remaining amount of the material roll clamped on the rotating unit; and the material clamping unit is movably connected with the workbench along the first preset direction and has a material clamping position for clamping the material roll in the material preparation unit and a feeding position for loading the clamped material roll into the rotating unit in the loading position. The automatic roll changing mechanism can reduce the number of on-duty workers and the labor intensity of the on-duty workers, and can improve the efficiency of roll changing, thereby shortening the time of roll changing and further shortening the time of roll changing downtime, so as to improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1The structure schematic diagram of the automatic roll changing mechanism in the embodiment of the present application is shown in the figure.

[0029] Figure 2 The structure schematic diagram of the material roll and the automatic roll changing mechanism in the embodiment of the present application is shown in the figure.

[0030] Figure 3 The structure schematic diagram of the automatic roll changing mechanism in the embodiment of the present application is shown in the figure. Figure 2 The local schematic diagram of the part A in the figure.

[0031] Figure 4 The structure schematic diagram of the air expanding shaft and the tensioning rod in the embodiment of the present application is shown in the figure.

[0032] Figure 5 The structure schematic diagram of the rubber attaching device in the embodiment of the present application is shown in the figure.

[0033] Figure: 100-automatic roll changing mechanism; 10-material roll; 110-workbench; 120-material preparation unit; 130-air expanding shaft; 140-detection unit; 150-material clamping unit; 160-pressing head; 170-cutting unit; 171-main body; 172-cutting part; 180-attaching rod; 190-belt clamping jaw; 210-tensioning rod; 300-rubber attaching device; 310-suction nozzle; 101-first driving unit; 102-second driving unit; 103-third driving unit; 104-fourth driving unit; 105-fifth driving unit; 106-sixth driving unit. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0036] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0037] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0040] Please refer to Figures 1-5 The present embodiment provides an automatic roll changing mechanism 100 for completing the roll changing action in the rubberizing device 300, which comprises a workbench 110, a standby material unit 120, a rotating unit, a detection unit 140 and a material clamping unit 150; in order to detachably receive the material roll and unload the used material roll, wherein the rotating unit can comprise an air expansion shaft 130 and a motor (not shown in the figure) for driving the air expansion shaft 130 to rotate. It can be understood that the rotating unit can also be in the form of a three-jaw chuck structure, which can clamp the unused material roll / unload the used material roll, and can grab the material shaft of the material roll and complete the rotation to achieve the functions of taking and placing the material roll and unwinding the rubber belt.

[0041] The standby material unit 120 is connected with the workbench 110 and is used to place at least one standby material roll 10; the air expansion shaft 130 is used to clamp the material roll 10, and the air expansion shaft 130 is movably connected with the workbench 110 along a first predetermined direction (such as Figure 1 the direction shown by arrow B in the middle figure) and has a material loading position for loading the material roll 10 and a material unloading position for unloading the material roll 10; the detection unit 140 is connected with the air expansion shaft 130 and is used to detect the remaining amount of the material roll 10 clamped on the air expansion shaft 130; the material clamping unit 150 is movably connected with the workbench 110 along the first predetermined direction and has a material clamping position for clamping the material roll 10 in the standby material unit 120 and an upper material loading position for loading the clamped material roll 10 into the air expansion shaft 130 in the material loading position.

[0042] Please refer to Figures 1-5 The working principle of the automatic roll changing mechanism 100 is as follows:

[0043] The automatic roll changing mechanism 100 can detect the remaining amount of the material roll 10 clamped on the air expansion shaft 130 through the detection unit 140, and thus can stop the machine to perform the roll changing action when the remaining amount of the rubber belt on the material roll 10 reaches the preset amount for roll changing;

[0044] Before the change roll action, the air shaft 130 needs to be reversed to recover the released tape part; then through the movement of the air shaft 130 along the first preset direction, it can be moved to the unloading position, and then the roll 10 on the air shaft 130 can be moved out at the unloading position;

[0045] After the roll 10 on the air shaft 130 is moved out, the air shaft 130 can move along the first preset direction to the loading position;

[0046] Then the clamping unit 150 moves along the first preset direction to the clamping position, and clamps one of the standby rolls 10 in the standby unit 120, and through the movement along the first preset direction, the clamped roll 10 is loaded into the loading position of the air shaft 130 at the loading position;

[0047] Thus, the change roll action is completed;

[0048] From the above, it can be seen that in the process of changing the roll, the automatic roll changing mechanism 100 can complete the detection of the roll 10 residual amount by the detection unit 140, and then automatically perform the subsequent roll changing action, thereby reducing the number of on-duty workers and reducing the labor intensity of the on-duty workers; Moreover, in the process of changing the roll, the movement of the air shaft 130 can automatically unload, and its loading position is the position of releasing the roll 10 in the normal working state, thereby reducing the movement stroke of the air shaft 130, so that in the process of changing the roll, the clamping unit 150 can quickly complete the loading action by changing the position between the clamping position and the loading position. That is, it can simplify the steps of unloading and loading to improve the efficiency of changing the roll, thereby shortening the time of changing the roll, and further shortening the downtime of changing the roll, thereby improving the production efficiency.

[0049] Further, please refer to Figures 1-5 In this embodiment, in order to improve the stability of the roll 10 loaded on the air shaft 130 during loading, prevent the roll 10 from being separated from the air shaft 130 during the release of the tape, the automatic roll changing mechanism 100 further comprises a pressing head 160, which is movably connected with the air shaft 130 along the second preset direction (such as the direction shown by the arrow C in the figure) and has a pressing position and an interval position; wherein the first preset direction and the second preset direction are perpendicular. Figure 1

[0050] ​When the pressing head 160 is in the pressing position, the pressing head 160 is used to press the roll 10 clamped on the inflatable shaft 130 to limit the movement of the roll 10 in the direction of being separated from the inflatable shaft 130; when the pressing head 160 is in the interval position, the pressing head 160 is spaced from the inflatable shaft 130, and the interval area between the inflatable shaft 130 and the pressing head 160 is used for the roll 10 to pass through.

[0051] Therefore, when the inflatable shaft 130 is in the state of normally releasing the adhesive tape, the movement of the roll 10 in the direction of being separated from the inflatable shaft 130 can be limited by the pressing head 160 in the pressing position, so that the installation stability of the roll 10 can be maintained; and in order to avoid that the movement of the roll 10 about to be removed or the roll 10 about to be installed is limited by the clamping head during the process of releasing or installing a new roll 10, the pressing head 160 further comprises an interval position, when the pressing head 160 is in the interval position, the interval area between the inflatable shaft 130 and the pressing head 160 can be used for the roll 10 to pass through, so that the movement of the roll 10 about to be removed or the roll 10 about to be installed can be avoided to be limited by the clamping head, thereby ensuring the normal operation of the actions of removing the roll 10 and installing the roll 10.

[0052] Based on the above, please refer to Figures 1-5 In the embodiment, in order to control the movement of the inflatable shaft 130, the movement of the clamping unit 150 and the pressing head 160, thereby improving the automation degree and the stability of the operation of the automatic roll changing mechanism 100, the automatic roll changing mechanism 100 further comprises a first driving unit 101, a second driving unit 102 and a third driving unit 103.

[0053] The first driving unit 101 is used to drive the inflatable shaft 130 to change positions between the loading position and the unloading position along a first preset direction; the second driving unit 102 is used to drive the clamping unit 150 to change positions between the clamping position and the loading position along the first preset direction; and the third driving unit 103 is used to drive the pressing head 160 to change positions between the pressing position and the interval position along a second preset direction. It should be noted that when the first driving unit 101, the second driving unit 102 and the third driving unit 103 are arranged, the movement form between the two positions can adopt a linear motion mode, so that one or more of the existing linear driving structures such as a track moving structure, a motor moving structure or a screw transmission structure can be adopted, and the specific driving structure and driving principle will not be described here.

[0054] Further, please refer to Figures 1-5 In the embodiment, the automatic roll changing mechanism 100 further comprises a cutting unit 170 and a fourth driving unit 104.

[0055] The cutting unit 170 is movably connected with the workbench 110 along a third preset direction (e.g., the direction indicated by the arrow D), and the fourth driving unit 104 is configured to drive the cutting unit 170 to move along the third preset direction and has an upper tape position and a cutting position. Figure 1 The first, second and third preset directions are perpendicular to each other.

[0056] When the cutting unit 170 is in the upper tape position, the cutting unit 170 is configured to receive an external adhesive tape; and when the cutting unit 170 is in the cutting position, the cutting unit 170 is configured to cut the adhesive tape.

[0057] According to the above, the cutting unit 170 can be used to cut the adhesive tape when the cutting unit 170 is in the cutting position, so that the required adhesive tape can be quickly cut to improve the efficiency of the taping. In addition, the cutting unit 170 also includes the upper tape position to cooperate with the roll changing action described above. When the cutting unit 170 is in the upper tape position, the cutting unit 170 is configured to receive an external adhesive tape. That is, the cutting unit 170 can cooperate with the air expansion shaft 130 and the material clamping unit 150 to complete the tape threading work after the roll changing, so that the automatic roll changing mechanism 100 can quickly perform the tape threading work of the roll 10 after the roll changing, thereby improving the working efficiency of the automatic roll changing mechanism 100.

[0058] Specifically, when the cutting unit 170 is provided, the cutting unit 170 includes a main body 171, a cutting part 172 and a fifth driving unit 105.

[0059] The main body 171 is movably connected with the workbench 110 along the third preset direction, and the fourth driving unit 104 is configured to drive the main body 171 to change positions between the upper tape position and the cutting position. The main body 171 is provided with a passage for the adhesive tape to pass through.

[0060] The cutting part 172 is movably connected with the main body 171 along the second preset direction, and the fifth driving unit 105 is configured to drive the cutting part 172 to move along the second preset direction and has a tape passing position and a tape cutting position. When the cutting part 172 is in the tape passing position, the cutting part 172 is located above the passage to open the passage and allow the external adhesive tape to move into the passage. When the cutting part 172 is in the tape cutting position, the cutting part 172 is configured to cut the adhesive tape.

[0061] Thus, when the roll changing action in the above content is completed, the main body 171 is driven by the fourth driving unit 104 to change from the cutting position to the upper tape position; at the same time, the cutting part 172 is driven by the fifth driving unit 105 to change from the cutting tape position to the over tape position, so that the passage on the main body 171 is opened to facilitate the external adhesive tape to move into the passage, that is, the threading action is completed; after the threading is completed, the main body 171 is driven by the fourth driving unit 104 to change from the upper tape position to the cutting position, and at the same time, the cutting part 172 is driven by the fifth driving unit 105 to change from the over tape position to the cutting tape position, so that the cutting action of the adhesive tape by the cutting part 172 can be performed, and the threading action can be quickly completed.

[0062] In addition, the automatic roll changing mechanism 100 further comprises an attaching rod 180 connected with the material preparation unit 120, and the attaching rod 180 is used to attach the free end of the roll 10 in the material preparation unit 120. It should be noted that the attaching rod 180 is used to attach the free end of the roll 10 in the material preparation unit 120, and the purpose is to facilitate the subsequent threading action, and the free end of the roll 10 can be attached to the attaching rod 180 in a manual operation mode.

[0063] Based on the threading process described above, please refer to Figures 1-5 In this embodiment, in order to improve the efficiency of threading, the automatic roll changing mechanism 100 further comprises a threading clamp 190 and a sixth driving unit 106.

[0064] The threading clamp 190 is movably connected with the workbench 110 or the material preparation unit 120 along a first preset direction, and the sixth driving unit 106 is used to drive the threading clamp 190 to move along the first preset direction and has a clamping position and a threading position.

[0065] When the threading clamp 190 is in the clamping position, the threading clamp 190 is used to clamp the free end of the roll 10 attached to the attaching rod 180; when the threading clamp 190 is in the threading position, the adhesive tape between the threading clamp 190 and the gas expansion shaft 130 is moved into the passage, and the main body 171 is in the upper tape position and the cutting part 172 is in the over tape position.

[0066] Therefore, by the setting of the threading clamping jaw 190, the free end of the roll 10 attached to the attaching rod 180 can be clamped, and under the driving action of the sixth driving unit 106, the free end of the roll 10 is clamped, and the clamping position is changed to the threading position, and the adhesive tape is moved into the channel, that is, the threading action is completed. It should be noted that before the change to the threading position, the fourth driving unit 104 has driven the main body 171 to change from the cutting position to the taping position; at the same time, the fifth driving unit 105 has driven the cutting part 172 to change from the cutting position to the passing position, so that the channel on the main body 171 is open, and in the process of changing the threading clamping jaw 190 from the clamping position to the threading position, the adhesive tape between the threading clamping jaw 190 and the inflatable shaft 130 is moved into the channel, thereby completing the threading action.

[0067] After the roll changing and threading are completed, or in the process of normal release of the adhesive tape by the inflatable shaft 130, in order to maintain the tension of the adhesive tape and prevent the released adhesive tape from being shrunk, the automatic roll changing mechanism 100 further comprises a seventh driving unit and at least one tensioning rod 210. The tensioning rod 210 is movably connected to the main body 171 along a second preset direction, and the seventh driving unit is used to drive the tensioning rod 210 to move along the second preset direction, so that the tensioning rod 210 tensions the adhesive tape between the cutting unit 170 and the inflatable shaft 130. In the process of tensioning the adhesive tape by the tensioning rod 210, the size of the tensioning force can be adjusted by moving the tensioning rod 210 along the second preset direction.

[0068] When the detection unit 140 is provided, it can include a light emitting fiber sensor.

[0069] In summary, please refer to Figures 1-5 Based on the above automatic roll changing mechanism 100, the present application provides a taping device 300, which comprises a taping unit and the above automatic roll changing mechanism 100.

[0070] The taping unit comprises a suction nozzle 310, which is located below the channel and directly opposite the cutting part 172. The suction nozzle 310 is used to suck the adhesive tape cut by the cutting part 172, and the cut adhesive tape is attached to the target material below the suction nozzle 310.

[0071] It should be noted that in the present embodiment, during the taping process, when the target material is an electric core, since the electric core has two tabs, the taping device 300 comprises two above-mentioned automatic roll changing mechanisms 100, so that the efficiency of roll changing and threading of the taping device 300 is improved, and the downtime of the taping device 300 during roll changing is shortened, thereby improving the efficiency of the taping device 300.

[0072] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An automatic roll changing mechanism, characterized in that: The automatic roll changing mechanism includes a worktable, a material preparation unit, a rotation unit, a detection unit, and a clamping unit; The material preparation unit is connected to the workbench and is used to place at least one spare material roll; the rotating unit is used to clamp the material roll, and the rotating unit is movably connected to the workbench along a first preset direction, and has a loading position for loading the material roll and a unloading position for removing the material roll; the detection unit is connected to the rotating unit and is used to detect the remaining amount of the material roll clamped on the rotating unit; the clamping unit is movably connected to the workbench along the first preset direction, and has a clamping position for clamping the material roll in the material preparation unit, and a loading position for loading the clamped material roll into the rotating unit at the loading position; The automatic roll changing mechanism further includes a clamping head, which is movably connected to the rotating unit along a second preset direction and has a clamping position and a spaced position; wherein, the first preset direction is perpendicular to the second preset direction; when the clamping head is in the clamping position, the clamping head is used to clamp the roll clamped on the rotating unit to restrict the movement of the roll along the direction away from the rotating unit; when the clamping head is in the spaced position, the clamping head is spaced from the rotating unit, and the spaced area between the rotating unit and the clamping head is used for the roll to pass through; The rotating unit includes an air shaft and a motor that drives the air shaft to rotate; the automatic roll changing mechanism further includes a cutting unit and a fourth driving unit; the cutting unit is movably connected to the worktable along a third preset direction, and the fourth driving unit is used to drive the cutting unit to move along the third preset direction, and has a tape-loading position and a material-cutting position; wherein, the first preset direction, the second preset direction and the third preset direction are perpendicular to each other; when the cutting unit is in the tape-loading position, the cutting unit is used to receive external tape; when the cutting unit is in the material-cutting position, the cutting unit is used to cut the tape.

2. The automatic roll changing mechanism according to claim 1, characterized in that: The automatic roll changing mechanism further includes a first drive unit, a second drive unit, and a third drive unit; The first driving unit is used to drive the rotating unit to change position between the loading position and the unloading position along the first preset direction; the second driving unit is used to drive the clamping unit to change position between the clamping position and the loading position along the first preset direction; the third driving unit is used to drive the pressing head to change position between the pressing position and the interval position along the second preset direction.

3. The automatic roll changing mechanism according to claim 1, characterized in that: The cutting unit includes a main body, a cutting section, and a fifth driving unit; The main body is movably connected to the worktable along the third preset direction, the fourth drive unit is used to drive the main body to change position between the upper belt position and the cutting position, and the main body is configured with a channel for the tape to pass through; The cutting part is movably connected to the main body along the second preset direction. The fifth driving unit is used to drive the cutting part to move along the second preset direction and has a tape-passing position and a tape-cutting position. When the cutting part is in the tape-passing position, the cutting part is located above the channel to open the channel and allow external tape to move into the channel. When the cutting part is in the tape-cutting position, the cutting part is used to cut the tape.

4. The automatic roll changing mechanism according to claim 3, characterized in that: The automatic roll changing mechanism also includes an attachment rod connected to the material preparation unit, the attachment rod being used to attach the free end of the roll in the material preparation unit.

5. The automatic roll changing mechanism according to claim 4, characterized in that: The automatic roll changing mechanism also includes a belt-threading gripper and a sixth drive unit; The threading gripper is movably connected to the workbench or the material preparation unit along the first preset direction, and the sixth driving unit is used to drive the threading gripper to move along the first preset direction and has a gripping position and a threading position. When the threading jaws are in the clamping position, the threading jaws are used to clamp the free end of the material roll attached to the attaching rod; when the threading jaws are in the threading position, the tape between the threading jaws and the air shaft is moved into the channel, and the main body is in the upper tape position, and the cutting part is in the tape passing position.

6. The automatic roll changing mechanism according to claim 5, characterized in that: The automatic roll changing mechanism further includes a seventh drive unit and at least one tensioning rod. The tensioning rod is movably connected to the main body along the second preset direction. The seventh drive unit is used to drive the tensioning rod to move along the second preset direction so that the tensioning rod tensions the tape located between the cutting unit and the air shaft.

7. The automatic roll changing mechanism according to claim 1 or 2, characterized in that: The detection unit includes a through-beam fiber optic sensor.

8. An adhesive applicator, characterized in that: The adhesive application device includes an adhesive application unit and an automatic roll changing mechanism as described in any one of claims 1-7; The adhesive applicator includes a suction nozzle located below the channel and directly opposite the cutting section. The suction nozzle is used to pick up the tape cut by the cutting section and apply the cut tape to the target material located below the suction nozzle.

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