A tape rotary cutting device in a carton sealing machine

Abstract

The application provides a tape rotary cutting device in a box sealing machine, which comprises a base, a rotary blade and a fixed blade. The base is fixed on a mounting frame of the box sealing machine, a cutter roll is connected to one side of the base to rotate, the rotary blade is fixed on the cutter roll, the cutting edge of the rotary blade extends out of the circumferential surface of the cutter roll, the fixed blade is located below the cutter roll, and the cutting edge of the fixed blade is arranged to be inclined relative to the cutting edge of the rotary blade, so that in the process of rotating to cut off the tape, the cutting edge of the rotary blade can gradually cut across the cutting edge of the fixed blade in a continuous point position tangent mode to cut off the tape. In the rotary cutting tape mode, the cutting edge of the fixed blade and the cutting edge of the rotary blade keep tangent at a continuous point position, which can reduce the torque of the cutter roll when cutting off the tape, facilitate cutting off the tape with greater toughness, and can reduce the torque required to drive the rotary blade to rotate, thus being also beneficial to energy saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of adhesive tape cutting device, in particular to a kind of adhesive tape rotary cutting device in sealing machine. BACKGROUND

[0002] Adhesive tape is composed of two parts of base material and adhesive, two or more objects not connected together are connected by bonding, and a layer of adhesive is coated on its surface. In the sealing machine using transparent adhesive tape and other non-glass fiber strip adhesive tape, the way to cut the adhesive tape is to use a serrated cutter, and the cutter is scraped by the tension of the adhesive tape to cut the adhesive tape.

[0003] However, due to the toughness of the glass fiber strip adhesive tape, the traditional cutter cutting method is difficult to cut such adhesive tape. SUMMARY

[0004] In view of the deficiencies in the above background art, the present application provides an adhesive tape rotary cutting device in a sealing machine.

[0005] The present application adopts the following technical solutions:

[0006] An adhesive tape rotary cutting device in a sealing machine, characterized in that the device comprises:

[0007] a base, one side of the base is connected to a rotatable cutter roll;

[0008] a rotary blade, the rotary blade is fixed on the cutter roll, and the cutting edge of the rotary blade extends out of the circumferential surface of the cutter roll;

[0009] a fixed blade, the fixed blade is located below the cutter roll, and the cutting edge of the fixed blade is skewed relative to the cutting edge of the rotary blade in the top view;

[0010] Wherein, the adhesive tape to be cut passes through the gap between the fixed blade and the cutter roll, and the adhesive tape is cut when the cutter roll rotates to the tangent of the rotary blade and the fixed blade.

[0011] In a possible implementation, one side of the base is fixed with a lower cutter holder, one side of the lower cutter holder is provided with a recessed mounting groove, and the inner surface of the mounting groove is skewed relative to the cutting edge of the rotary blade in the top view, and the fixed blade is fixed and attached to the inner surface of the lower cutter holder.

[0012] In a possible implementation, the lower cutter holder is provided with a plurality of threaded holes penetrating the inner surface of the mounting groove, each threaded hole is adapted to a screw connection fixed bolt, and the surface of the fixed blade is provided with a plurality of penetrating waist-shaped holes, each fixed bolt is respectively screwed through each waist-shaped hole and the threaded hole to press the fixed blade tightly on the lower cutter holder.

[0013] In a possible implementation, the lower knife holder is connected with a screw rod on the side away from the blade of the fixed knife, and the screw rod penetrates the lower knife holder and is screwed to the fixed knife.

[0014] In a possible implementation, the device further comprises a rotary cutting motor and a transmission shaft, the transmission shaft is connected to the base to rotate, one end of the rotary cutting motor is connected to the transmission shaft, and the other end of the transmission shaft is connected to the knife roller, so that the transmission shaft and the knife roller are fixed radially.

[0015] In a possible implementation, the base comprises a first connecting seat and a second connecting seat connected to each other, the transmission shaft penetrates the first connecting seat, and the end surface of the first connecting seat is provided with a limiting groove, which is a polygonal groove; one end of the knife roller is fixedly connected with a connecting shaft, and the end surface of the connecting shaft is provided with a protruding limiting part, which is a polygonal column body matching the limiting groove; when the first connecting seat and the second connecting seat are fixedly connected, the limiting part is matched and embedded into the limiting groove.

[0016] In a possible implementation, the device further comprises an eccentric wheel, a distance sensor and a control module, the eccentric wheel is fixed at the end of the transmission shaft, and the end surface of the eccentric wheel is fixed with an eccentric pin at an eccentric position, the distance sensor is located on the side away from the eccentric wheel, and the distance sensor is triggered when the eccentric pin approaches; the control module receives the signal that the distance sensor is triggered and controls the rotary cutting motor to pause; when the eccentric pin rotates to approach the distance sensor, the rotary blade rotates to be above the fixed blade.

[0017] As can be seen from the above description of the structure of the present application, compared with the prior art, the present application has the following advantages: the rotary blade 63 is arranged to rotate relative to the fixed blade 64, and the blade of the fixed blade 64 is arranged to be inclined relative to the blade of the rotary blade 63, so that when the rotary blade 63 rotates to cut the adhesive tape 21, the blade of the rotary blade 63 can gradually cut across the blade of the fixed blade 64 in a way that the blade of the fixed blade 64 and the blade of the rotary blade 63 are tangent at a continuous point, so as to cut the adhesive tape. In this way of cutting the adhesive tape, the blade of the fixed blade and the blade of the rotary blade are tangent at a continuous point, which can reduce the torque of the knife roller when cutting the adhesive tape, facilitate cutting of the adhesive tape with greater toughness, and reduce the torque required to drive the rotary blade to rotate, thus being beneficial to energy saving.

[0018] In addition, when the knife roller rotates to the rotary blade away from the fixed blade, the gap between the fixed blade and the knife roller can be ensured to be in the maximum state, so that the adhesive tape can pass smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the present application.

[0020] Figure 2 It is a perspective view of the present application hidden rotary cutting motor, adhesive tape and synchronous belt.

[0021] Figure 3 It is a perspective view of the present application. Figure 2 It is an enlarged view of A in the middle.

[0022] Figure 4 It is a top view of the fixed blade fixed to the side of the base.

[0023] Figure 5 It is a top view of the lower knife holder fixed to the side of the base.

[0024] Figure 6 It is a top view of the rotary blade connected to the side of the base.

[0025] Figure 7 It is a cross-sectional view of the present application.

[0026] Figure 8 It is a perspective view of the eccentric connected to the first connecting seat.

[0027] Figure 9 It is a perspective view of the knife roll and the lower knife holder connected to the second connecting seat.

[0028] Figure 10 It is a view of the rotary blade rotating to cut off the adhesive tape.

[0029] Figure 11 It is a view of the rotary blade resetting to be away from the fixed blade. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings.

[0031] Hereinafter, the terms “first”, “second”, and the like are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first”, “second”, and the like can explicitly or implicitly include one or more of the features.

[0032] In addition, in the present application, the orientation terms such as “up”, “down”, and the like are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0033] This invention discloses a tape rotary cutting device for a carton sealing machine, as shown in the attached figure. Figure 1 As shown, the device includes a base 61, a rotating blade 63, and a fixed blade 64. The base 61 is fixed to the mounting frame of the carton sealing machine. A blade roller 62 is connected to one side of the base 61 and rotates. The rotating blade 63 is fixed to the blade roller 62, with its cutting edge extending beyond the circumferential surface of the blade roller 62. The fixed blade 64 is located below the blade roller 62, and the tape 21 to be cut passes through the gap between the fixed blade 64 and the blade roller 62. When the blade roller 62 drives the cutting edge of the rotating blade 63 to rotate until it is tangential (i.e., in contact) with the cutting edge of the fixed blade 64, the rotating blade 63 cuts the tape 21 by rotation.

[0034] As attached Figures 4 to 6 As shown, in a top-down view (i.e., a vertical view from the cutter roller 62 to the fixed blade 64), when the rotating blade 63 is vertical, the cutting edge of the fixed blade 64 is oblique relative to the cutting edge of the rotating blade 63. That is, the cutting edge of the rotating blade 63 is straight, while the cutting edge of the fixed blade 64 is oblique. This structure allows the cutting edge of the rotating blade 63 to gradually slice across the cutting edge of the fixed blade 64 in a continuous point-to-point tangential manner during the rotation of the rotating blade 63 to cut the tape 21. This forms a process of gradually cutting the tape 21 from one side to the other, rather than cutting the tape 21 in one go. Therefore, the torque of the cutter roller 62 when cutting the tape 21 can be reduced, making it easier to cut more flexible tapes. It also reduces the torque required to drive the rotating blade 63 to rotate, thus contributing to energy saving.

[0035] As attached Figure 2 and 3 As shown, a lower tool holder 65 is fixed to one side of the base 61, and a recessed mounting groove 651 is provided on one side of the lower tool holder 65. From a top view, as shown in the attached diagram... Figure 5 and 6 As shown, the inner surface of the mounting groove 651 is skewed relative to the cutting edge of the rotating blade 63. The fixed blade 64 is fixedly fitted to the inner surface of the mounting groove 651. The fixing method is as follows: the lower blade holder 65 is provided with several threaded holes penetrating the inner surface of the mounting groove 651, and each threaded hole is adapted to a screw-connected fixing bolt 642. The surface of the fixed blade 64 is provided with several through oblong holes 641. Each fixing bolt 642 passes through each oblong hole 641 and is screwed and tightened to the threaded hole to press and fix the fixed blade 64 to the lower blade holder 65. In this fixing structure, the fixed blade 64 can slide along the oblong holes 641 to adjust the distance between the cutting edge of the fixed blade 64 and the blade roller 62, thereby adjusting the gap between the rotating blade 63 and the fixed blade 64 after they are tangent.

[0036] Furthermore, the lower blade holder 65 is screwed with an adjusting screw 652 on the blade side facing away from the fixed blade 64. After the fixed blade 64 is adjusted and fixed, the adjusting screw 652 is screwed through the lower blade holder 65 and pushed against the fixed blade 64, so that the adjusting screw 652 provides support for the fixed blade 64 and prevents the fixed blade 64 from sliding away from the blade roller 62 in the mounting groove 651.

[0037] As attached Figure 1 and 7 As shown, the present invention also includes a rotary cutting motor 661 and a drive shaft 667. The drive shaft 667 is rotatably connected to the base 61, and one end of the drive shaft 667 is connected to the cutter roller 62, so that the drive shaft 667 and the cutter roller 62 are radially fixed. The rotary cutting motor 661 is fixed on the mounting frame of the carton sealing machine, and the output shaft of the rotary cutting motor 661 is drivenly connected to the other end of the drive shaft 667. The connection method can be: the output shaft of the rotary cutting motor 661 is fixed to a first synchronous pulley 662, and one end of the drive shaft 667 is fixed to a second synchronous pulley 663. Both the first synchronous pulley 662 and the second synchronous pulley 663 are engaged with a synchronous belt 664, so that the rotary cutting motor 661 drives the drive shaft 667 to rotate through the transmission of the first synchronous pulley 662, the synchronous belt 664 and the second synchronous pulley 663, thereby driving the cutter roller 62 to rotate.

[0038] As attached Figure 2 and 7 As shown, the base 61 includes a first connecting seat 611 and a second connecting seat 612 that are connected to each other. The first connecting seat 611 and the second connecting seat 612 can be fixedly connected by screws. (See attached diagram.) Figure 8 The drive shaft 667 passes through the first connecting seat 611, and a limiting groove 6671 is provided on the end face of the drive shaft 667. The limiting groove 6671 is a polygonal groove, and in this embodiment, it is preferably a rectangular groove. (Refer to the attached diagram.) Figure 9 One end of the cutter roller 62 is fixedly connected to a shaft 621, which passes through a second connecting seat 612. A protruding limiting portion 6211 is provided on the end face of the shaft 621 after it passes through the second connecting seat 612. This limiting portion 6211 is a polygonal prism, i.e., a rectangular prism, that adapts to a limiting groove 6671. When the first connecting seat 611 and the second connecting seat 612 are fixedly connected, the limiting portion 6211 is fitted into the limiting groove 6671. This connection structure enables a radial fixed connection between the drive shaft 667 and the cutter roller 62, allowing the rotation of the drive shaft 667 to drive the rotation of the cutter roller 62. Preferably, bearings are embedded and fixed in both the first connecting seat 611 and the second connecting seat 612. The drive shaft 667 passes through the bearing of the first connecting seat 611 with an interference fit, and the connecting shaft 621 passes through the bearing of the second connecting seat 612 with an interference fit. The connection of the bearings makes the rotation of the drive shaft 667 and the connecting shaft 621 smoother.

[0039] Continuing to refer to the drawings Figure 9 The lower cutter holder 65 is fixed to the side of the second connecting seat 612, so that the fixed blade 64 is fixed below the cutter roller 62. It can be seen that the connection of the second connecting seat 612, the connecting shaft 621 and the lower cutter holder 65 can make the second connecting seat 612, the cutter roller 62 and the fixed blade 64 form an integral body which can be disassembled relative to the first connecting seat 611. When it is necessary to replace or adjust the fixed blade 64, the second connecting seat 612 can be separated from the first connecting seat 612 and taken out for adjustment, which is more convenient.

[0040] As shown in the drawings Figure 10 and 11 , the application also comprises an eccentric wheel, a distance sensor 666 and a control module (not shown in the drawings). The eccentric wheel is fixed to the end of the transmission shaft 667, and the end face of the eccentric wheel fixes the eccentric pin 665 at an eccentric position. Preferably, the eccentric wheel can be the first synchronous wheel 662. The distance sensor 666 is fixed to the base 61, and the distance sensor 666 is located on the side of the eccentric wheel. The distance sensor 666 can be a proximity switch, and the control module can be a PLC controller in the cartoning machine. When the distance sensor 666 is triggered after sensing the approach of the eccentric pin 665, the control module receives the signal that the distance sensor 666 is triggered and controls the rotary cutting motor 661 to pause. The start of the rotary cutting motor 661 can be controlled by the operation panel or the key of the cartoning machine to output a signal to the control module. Specifically, the distance sensor 565 sends a triggered signal to the control module, and the control module controls the rotary cutting motor 661 to drive the eccentric wheel to rotate to stop after driving the rotary blade 63 to move away from the fixed blade 64 through the transmission shaft 667, thereby completing the reset of the rotary blade 63 and waiting for the next cutting instruction.

[0041] The working process of the application is shown in the drawings Figure 10 . When the rotary cutting motor 661 drives the eccentric wheel to rotate to the position where the eccentric pin 665 approaches the distance sensor 666 (i.e. is below), the cutter roller 62 rotates to the position where the rotary blade 63 is flush with the fixed blade 64 downward, so that the cutting of the adhesive tape 21 is realized through this process. At the same time, the distance sensor is triggered and sends a signal to the control module, so that the control module can control the rotary cutting motor 661 to drive the eccentric wheel to rotate to the position shown in the drawings Figure 11 , where the eccentric pin 665 is away from the distance sensor 666 (i.e. is above). At this time, the cutter roller 62 rotates to the position where the rotary blade 63 is upward, i.e. the rotary blade 63 is away from the fixed blade 64, so as to ensure that the gap between the fixed blade 64 and the cutter roller 62 is in the maximum state when the rotary blade 63 stops moving, so that the adhesive tape 21 can pass smoothly.

[0042] In summary, the rotary blade 63 is arranged to rotate relative to the fixed blade 64, and the cutting edge of the fixed blade 64 is arranged to be skewed relative to the cutting edge of the rotary blade 63, so that during rotation to cut the adhesive tape 21, the cutting edge of the rotary blade 63 can gradually pass through the cutting edge of the fixed blade 64 in a way that the cutting edge of the rotary blade 63 is tangent to the continuous point positions of the cutting edge of the fixed blade 64, which can reduce the torque of the cutter roller 62 when cutting the adhesive tape 21, facilitate cutting of the adhesive tape 21 with greater toughness, and can reduce the torque required to drive the rotary blade 63 to rotate, thus also facilitating saving of the electric energy required by the rotary cutting motor 661. In addition, during cutting of the adhesive tape 21, the position of the eccentric pin 665 can also be sensed by the distance sensor 5666 to achieve position control of the rotary blade 63 relative to the fixed blade 64, so that after the rotary blade 63 rotates to the fixed blade 64 to cut the adhesive tape 21, the rotary blade 63 is automatically reset to rotate away from the fixed blade 64, so that the adhesive tape 21 can smoothly pass between the cutter roller and the fixed blade 52, facilitating resealing and cutting.

[0043] The above is only a specific embodiment of the present application, but the design concept of the present application is not limited thereto, and any non-essential modification of the present application using this concept shall be deemed to be an infringement of the protection scope of the present application.

Claims

1. A tape cutting device for a carton sealing machine, characterized in that, The device includes: A base, one side of which is connected to a rotatable cutter roller; A rotating blade is fixed to the cutter roller, and the cutting edge of the rotating blade extends beyond the circumferential surface of the cutter roller; A fixed blade is located below the cutter roller, and the cutting edge of the fixed blade is skewed relative to the cutting edge of the rotating blade when viewed from above. A rotary cutting motor and a drive shaft are provided. The drive shaft is connected to the base for rotation. One end of the rotary cutting motor is connected to the drive shaft for transmission, and the other end of the drive shaft is connected to the cutter roller, so that the drive shaft and the cutter roller are radially fixed. The system includes an eccentric wheel, a distance sensor, and a control module. The eccentric wheel is fixed to the end of the drive shaft, and an eccentric pin is fixed to the end face of the eccentric wheel at an eccentric position. The distance sensor is located on the side outside the eccentric wheel. The distance sensor is triggered when it senses the eccentric pin approaching. The control module receives the signal from the triggered distance sensor and controls the rotary cutting motor to pause. The tape to be cut passes through the gap between the fixed blade and the cutter roller. When the cutter roller rotates to the point where the rotating blade and the fixed blade are tangent, the tape is cut. When the eccentric pin rotates to a position close to the distance sensor, the rotating blade rotates to a position above the fixed blade.

2. The tape cutting device in a carton sealing machine as described in claim 1, characterized in that: A lower blade holder is fixed to one side of the base. A recessed mounting groove is provided on one side of the lower blade holder. In a top view, the inner surface of the mounting groove is oblique to the cutting edge of the rotating blade. The fixed blade is fixedly attached to the inner surface of the lower blade holder.

3. The tape cutting device in a carton sealing machine as described in claim 2, characterized in that: The lower tool holder is provided with several threaded holes penetrating the inner surface of the mounting groove. Each threaded hole is adapted to a helical connection fixing bolt. The surface of the fixing blade is provided with several through oblong holes. Each fixing bolt passes through each oblong hole and is helically connected to the threaded hole to press the fixing blade tightly onto the lower tool holder.

4. The tape cutting device in a carton sealing machine as described in claim 2 or 3, characterized in that: The lower blade holder is helically connected to an adjusting screw on the blade side facing away from the fixed blade. The adjusting screw helically passes through the lower blade holder and pushes against the fixed blade.

5. The tape cutting device in a carton sealing machine as described in claim 1, characterized in that: The base includes a first connecting seat and a second connecting seat that are connected to each other. The drive shaft passes through the first connecting seat, and a limiting groove is provided on the end face of the first connecting seat. The limiting groove is a polygonal groove. One end of the cutter roller is fixed to a connecting shaft. The end face of the connecting shaft is provided with a protruding limiting part. The limiting part is a polygonal column that fits into the limiting groove. When the first connecting seat and the second connecting seat are fixedly connected, the limiting part is fitted into the limiting groove.

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