Swing arm type waste discharge method, waste discharge device and die-cutting machine capable of saving adhesive tape

Abstract

A swing-arm type waste discharge method, waste discharge device and die-cutting machine that can save adhesive tape, wherein the waste discharge device includes a waste discharge tape discharge assembly, a waste discharge tape lower pressure roller and a waste discharge tape receiving assembly, a waste discharge tape one-way conveying assembly is provided between the waste discharge tape lower pressure roller and the waste discharge tape receiving assembly, and a swing arm frame is provided between the waste discharge tape one-way conveying assembly and the waste discharge tape discharge assembly, the swing arm frame includes a first support member, a second support member and a connecting member, the first support member and the second support member are arranged in parallel at a predetermined distance, the connecting member connects the first support member and the second support member as a whole, a first support wheel and a second support wheel are respectively provided at both ends of the first support member, a third support wheel and a fourth support wheel are respectively provided at both ends of the second support member, and a return elastic member is provided on the outer side of the middle part of the first support member. The present invention can arrange the waste parts to be discharged one by one or in an overlapping arrangement, which can greatly improve the utilization rate of the waste discharge tape and save the cost of the waste discharge tape.

Description

Technical Field

[0001] The invention relates to the technical field of die-cutting, in particular to a swing-arm type waste discharge method, a waste discharge device and a die-cutting machine capable of saving adhesive tape. Background Art

[0002] Many products, such as self-adhesive labels and mobile phone films, need to pre-die-cut several holes according to the needs of the products to be attached, corresponding to the corresponding positions on the products to be attached that cannot be covered. In the prior art, for the mechanized waste discharge of waste at the semi-perforated position, the waste from the holes is mainly discharged by pasting and collecting. For example, the automatic waste discharge structure of a die-cutting machine disclosed in Chinese patent document CN210500514U is such a machine, which includes a workbench, a die-cutting machine is arranged on the workbench, and a waste discharge mechanism is arranged on the discharge side of the die-cutting machine; the waste discharge mechanism includes a tape discharge component, a tape receiving component, and a tape inserted between the tape discharge component and the tape receiving component, and a pressing element is arranged at the corresponding position of the workbench, which presses the tape down so that the adhesive side of the tape contacts the label paper conveyed on the workbench, and the waste after die-cutting is collected by sticking.

[0003] The method of collecting and pasting to discharge the waste from the holes has the advantages of fast speed, high efficiency and no damage to the edge of the perforation. However, this method requires the waste discharge tape to run synchronously with the material to be die-cut. In reality, the semi-perforation in the material to be die-cut only accounts for a part of the material to be die-cut, but the waste discharge tape of the same length as the material to be die-cut must also be used. In this way, only part of the waste discharge tape is used, and most of it is not used, resulting in a lot of waste discharge tape waste, which increases the waste discharge material cost of the manufacturer. How to improve the utilization rate of waste discharge tape is a technical problem that needs to be solved urgently by technicians in the same industry. Summary of the invention

[0004] In view of the problems existing in the prior art and to overcome the defects of the prior art, the present invention provides a swing-arm type waste discharge method, a waste discharge device and a die-cutting machine which can save adhesive tape.

[0005] The technical solution of the present invention is to provide a swing-arm type waste discharge method that can save adhesive tape, wherein the lower pressure roller of the waste discharge tape of the waste discharge device rotates in the opposite direction to the roller of the material to be die-cut, and the method comprises the following steps:

[0006] S1. When the waste part to be discharged on the material to be die-cut reaches between the lower pressure roller of the waste discharge tape and the supporting roller of the material to be die-cut, the protrusion of the lower pressure roller of the waste discharge tape presses down the adhesive side of the waste discharge tape to stick the waste part to be discharged;

[0007] S2, under the joint action of the protrusion of the waste discharge tape lower pressure roller and the roller of the material to be die-cut, the waste discharge tape with the waste discharge part to be discharged is conveyed to the waste discharge tape one-way conveying assembly located between the waste discharge tape lower pressure roller and the waste discharge tape receiving assembly; at the same time, the swing arm frame swings synchronously with the waste discharge tape, and when the waste discharge tape moves forward to the first predetermined length, the swing arm frame stops swinging, and the protrusion continues to drive the waste discharge tape to move forward to the second predetermined length, and the second predetermined length is less than the sum of the first predetermined length and the second predetermined length;

[0008] S3, the second predetermined length of the waste tape passes through the waste tape one-way conveying assembly and is then reeled up by the waste tape receiving assembly;

[0009] S4, when the waste discharge tape is separated from the protrusion of the lower pressure roller of the waste discharge tape, the swing arm frame rotates under the action of the return elastic member, so that the waste discharge tape retreats a first predetermined length and then stops;

[0010] S5. Repeat steps S1 to S4 until the material to be die-cut is rolled up.

[0011] As an improvement to the present invention, the power of the lower pressure roller of the waste discharge tape is provided by a first motor, the power of the waste discharge tape unwinding assembly is provided by a second motor, and the power of the waste discharge tape receiving assembly is provided by a third motor. The first motor, the second motor and the third motor are controlled by a control circuit.

[0012] As an improvement to the present invention, when the protrusion of the waste discharge tape lower pressure roller presses on the waste discharge part to be discharged on the material to be die-cut roller, the torque relationship of the waste discharge tape is that the downward pressure friction force F5 between the protrusion of the waste discharge tape lower pressure roller and the material to be die-cut roller is greater than the rewinding force F1 of the waste discharge tape unwinding assembly, the rewinding force F1 of the waste discharge tape unwinding assembly is greater than the swing arm resilient force F3 of the return elastic member; and the rewinding force F4 of the waste discharge tape receiving assembly is greater than the friction force F2 of the waste discharge tape one-way conveying assembly.

[0013] The present invention also provides a waste discharge device of a die-cutting machine, comprising a waste discharge tape discharge assembly, a waste discharge tape lower pressure roller and a waste discharge tape receiving assembly, a waste discharge tape one-way conveying assembly is provided between the waste discharge tape lower pressure roller and the waste discharge tape receiving assembly, the waste discharge tape one-way conveying assembly and the waste discharge tape discharge assembly are provided with a swing arm frame, the swing arm frame comprises a first support member, a second support member and a connecting member, the first support member and the second support member are arranged in parallel at a predetermined distance, the connecting member connects the first support member and the second support member into one, a first support wheel and a second support wheel are respectively provided at both ends of the first support member, a third support wheel and a fourth support wheel are respectively provided at both ends of the second support member, a return elastic member is provided on the outer side of the middle part of the first support member, a first positioning member is provided on the outer side of the second support member on the frame plate, and a second positioning member is provided on the outer side of the first support member on the frame plate.

[0014] As an improvement to the present invention, the waste discharge tape unloading component is a constant tension return force unloading component.

[0015] As an improvement to the present invention, the waste discharge tape one-way conveying component is a one-way shaft.

[0016] As an improvement to the present invention, the waste discharge tape receiving assembly is a constant tension pulling receiving assembly.

[0017] The present invention also provides a die-cutting machine, comprising the waste discharge device of the die-cutting machine.

[0018] Compared with the prior art, the present invention changes the advancement mode of the waste discharge tape in the prior art from the traditional mode of synchronous operation with the material to be die-cut to a mode in which the waste discharge tape follows a pre-set stepping mode, and the stepping distance is less than or equal to the width of the protrusion of the lower pressure roller of the waste discharge tape. In this way, the waste parts to be discharged can be arranged one by one or in an overlapping manner, which can greatly improve the utilization rate of the waste discharge tape and save the cost of the waste discharge tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the block structure of the method of the present invention.

[0020] Figure 2 It is a side structural schematic diagram of the device of the present invention.

[0021] Figure 3 yes Figure 2 Schematic diagram of the top view structure.

[0022] Figure 4 yes Figure 2 A schematic diagram of the embodiment shown showing the protrusion pressing on the roller of the material to be die-cut.

[0023] Figure 5 yes Figure 2 The schematic diagram of the embodiment shown is that the protrusion is about to leave the roller of the material to be die-cut.

[0024] Figure 6 It is a schematic diagram of the use effect of the present invention. Implementation

[0025] See also Figure 1 , Figure 1Disclosed is a swing-arm type waste discharge method that can save adhesive tape. The label of the waste tape lower pressure roller 12 of the waste discharge device can be found in the label of the device part below. The same below is driven by a first motor 9 and rotates in the opposite direction with the material roller 8 to be die-cut. Specifically, the reverse rotation is achieved by providing a lower pressure roller gear 122 at one end of the waste tape lower pressure roller 12 and a roller gear 81 at the same end of the material roller 8 to be die-cut. The lower pressure roller gear 122 and the roller gear 81 are meshed and realized, and the method includes the following steps:

[0026] S1, when the waste discharge portion 51 on the material to be die-cut 5 reaches between the waste discharge tape lower pressing roller 12 and the material to be die-cut supporting roller 8, the protrusion 121 of the waste discharge tape lower pressing roller 12 moves downward to press down the adhesive side of the waste discharge tape 18 to stick the waste discharge portion 51;

[0027] S2. Under the joint action of the protrusion 121 of the waste tape lower pressure roller 12 and the material support roller 8 to be die-cut, the waste tape 18 with the waste portion 51 to be discharged is conveyed to the waste tape one-way conveying assembly 19 located between the waste tape lower pressure roller 12 and the waste tape receiving assembly 22; at the same time, the swing arm frame 15 swings synchronously with the waste tape 18. When the waste tape 18 moves forward to the first predetermined length, the swing arm frame 15 stops swinging, and the protrusion 121 continues to drive the waste tape 18 to move forward to the second predetermined length, which is less than the sum of the first predetermined length and the second predetermined length (i.e., the first predetermined length). The sum of the predetermined length and the second predetermined length is equal to the width of the protrusion 121); for example, assuming that the width of the protrusion 121 is 7 mm, under the action of the downward pressure and friction F5 between the protrusion 121 and the roller 8 of the material to be die-cut, the waste discharge tape 18 is transported to the waste discharge tape one-way conveying assembly 19, and at the same time, the swing arm frame 15 and the waste discharge tape 18 swing synchronously, and the swing arm frame 15 carries the waste discharge tape 18 forward by the first predetermined length (such as 4 mm), and the swing arm frame 15 stops swinging. At this time, the remaining second predetermined length (3 mm) will continue to move forward, and the remaining second predetermined length will be rolled up by the waste discharge tape receiving assembly;

[0028] Of course, the width of the protrusion 121 of 7 mm is only an example and cannot be used to limit the present invention; the width of the protrusion 121 can be selected between 3 mm and 15 mm;

[0029] S3, the waste tape 18 of the second predetermined length passes through the waste tape one-way conveying assembly 19 and is then rolled up by the waste tape receiving assembly 22;

[0030] S4, when the waste tape 18 is separated from the protrusion 121 of the waste tape lower pressure roller 12, under the action of the return elastic member 17, the swing arm frame 15 rotates, so that the waste tape 18 retreats a first predetermined length and then stops;

[0031] S5. Repeat steps S1 to S4 until the material to be die-cut is rolled up.

[0032] Preferably, the power of the waste tape lower pressure roller 12 is provided by the first motor 9, the power of the waste tape discharge assembly is provided by the second motor 141, and the power of the waste tape receiving assembly is provided by the third motor 221. The first motor 9, the second motor 141 and the third motor 221 are controlled by the control circuit.

[0033] Preferably, when the protrusion 121 of the waste discharge tape lower pressure roller 12 presses on the waste discharge part 51 to be discharged on the material roller 8 to be die-cut, the torque relationship of the waste discharge tape 18 is that the downward pressure friction force F5 between the protrusion 121 of the waste discharge tape lower pressure roller and the material roller 8 to be die-cut is greater than the rewinding force F1 of the waste discharge tape unwinding component 14, and the rewinding force F1 of the waste discharge tape unwinding component 14 is greater than the swing arm rebound force F3 of the return elastic member 1513; and the rewinding force F4 of the waste discharge tape receiving component 22 is greater than the friction force F2 of the waste discharge tape one-way conveying component 19.

[0034] See also Figure 2-Figure 5 , Figure 2-Figure 5 Disclosed is a waste discharge device of a die-cutting machine, comprising a waste discharge tape discharge component 14, a waste discharge tape lower pressure roller 12 and a waste discharge tape receiving component 22, a waste discharge tape one-way conveying component 19 is arranged between the waste discharge tape lower pressure roller 12 and the waste discharge tape receiving component 22, the waste discharge tape one-way conveying component 19 and the waste discharge tape discharge component 14 are provided with a swing arm frame 15, the swing arm frame 15 comprises a first support member 151, a second support member 152 and a connecting member 153, the first support member 151 and the second support member 152 are arranged in parallel at a predetermined distance, the connecting member 153 The connecting member 153 connects the first supporting member 151 and the second supporting member 152 as a whole. The first supporting member 151 is provided with a first supporting wheel 1511 and a second supporting wheel 1512 at both ends. The second supporting member 152 is provided with a third supporting wheel 1521 and a fourth supporting wheel 1522 at both ends. A return elastic member 1513 is provided on the outer side of the middle part of the first supporting member 151. A first positioning member 16 is provided on the outer side of the second supporting member 152 on the frame plate 6. A second positioning member 17 is provided on the outer side of the first supporting member 151 on the frame plate 6. When in use, the initial state is as follows. Figure 2 As shown, the swing arm 15 is inclined toward the side of the waste discharge tape discharge assembly 14. When the protrusion 121 is pressed on the waste discharge portion 51 under the waste discharge tape 18, the downward pressure friction F5 between the protrusion 121 and the roller 8 of the material to be die-cut is the largest (see Figure 4), the protrusion 121 continues to rotate to drive the waste discharge tape 18 to be transported forward, and the waste discharge tape 18 makes the swing arm frame 15 and the protrusion 121 swing forward synchronously through the first support wheel 1511 and the second support wheel 1512. At this time, the waste discharge tape 18 located between the waste discharge tape one-way conveying component 19 and the protrusion remains unchanged in length under the support of the third support wheel 1521 and the fourth support wheel 1522 of the second support member 152, and the waste discharge tape receiving component 22 will not be reeled; when the swing arm frame 15 swings to the first predetermined length, the first positioning member 16 supports the swing arm frame 15 to prevent it from continuing to swing (see Figure 5 ), at this time, the protrusion 121 is still conveying the second predetermined length of the waste discharge tape 18. Since the swing arm frame 15 has stopped, the second predetermined length of the waste discharge tape 18 will pass through the waste discharge tape one-way conveying component 19 and be reeled up by the waste discharge tape receiving component 22; when the protrusion 121 is separated from the waste discharge tape 18, under the action of the swing arm rebound force F3 of the return elastic member 1513, the swing arm frame 15 returns to its original position against the second positioning member 17 and returns to Figure 2 In the state shown, the next step is ready. In this embodiment, assuming that the width of the protrusion 121 is 7mm, under the action of the downward pressure and friction F5 between the protrusion 121 and the roller 8 of the material to be die-cut, the waste tape 18 is transported to the waste tape one-way conveying assembly 19. At the same time, the swing arm 15 swings synchronously with the waste tape 18, and the swing arm 15 carries the waste tape 18 forward for a first predetermined length (such as 4mm). The swing arm 15 stops swinging, and at this time, the remaining second predetermined length (3mm) will continue to move forward, and the remaining second predetermined length will be rolled up by the waste tape receiving assembly;

[0035] Of course, the width of the protrusion 121 of 7 mm is only an example and cannot be used to limit the present invention; the width of the protrusion 121 can be selected between 3 mm and 15 mm.

[0036] like Figure 6 As shown, the present invention can realize overlapping arrangement of multiple waste discharge parts 51 or arrangement one after another.

[0037] Preferably, the waste discharge tape unloading component 14 is a constant tension recovery force unloading component.

[0038] Preferably, the waste discharge tape one-way conveying component 19 is a one-way shaft.

[0039] Preferably, the waste discharge tape receiving assembly 22 is a constant tension pulling receiving assembly.

[0040] In the present invention, the constant tension return force discharge component and the constant tension pulling force collection component can adopt a magnetic powder motor with a speed-regulating tension control hand-tension roller component, or a sliding motor with a speed-regulating tension control hand-tension roller component. When the force of the waste discharge tape 18 is too large, the motor can automatically slip so as not to break the waste discharge tape 18. In the present invention, the so-called constant tension means that after the tension is adjusted, the tension of the device remains basically unchanged during operation.

[0041] See also Figures 2 to 5 The present invention also provides a die-cutting machine, comprising the above-mentioned waste discharge device, from Figures 2 to 5 It can be seen that the die-cutting machine also includes a material unwinding shaft 1, a cutting support roller 2, a circular die-cutting knife roller 3, a first support roller 7, a second support roller 10 and a material winding roller 11; the material 5 to be die-cut is unwinded from the material unwinding shaft 1, and when it passes through the cutting support roller 2 driven by the motor 4, the circular die-cutting knife roller 3 above the cutting support roller 2 partially cuts off the waste material 5 to form a waste portion 51 to be peeled off. After the die-cut material passes through the first support roller 7, it passes through the waste support roller 8 driven by the motor 9, and then passes through the second support roller 10 and is wound up by the material winding roller 11.

[0042] In this embodiment, the waste material 5 may be a self-adhesive material.

[0043] In the above embodiments, all components and mechanisms can be fixed on the frame plate 6 .

[0044] Compared with the prior art, the present invention changes the advancement mode of the waste discharge tape in the prior art from the traditional mode of synchronous operation with the material to be die-cut to a mode in which the waste discharge tape follows a pre-set stepping mode, and the stepping distance is less than or equal to the width of the protrusion of the lower pressure roller of the waste discharge tape. In this way, the waste parts to be discharged can be arranged one by one or in an overlapping manner, which can greatly improve the utilization rate of the waste discharge tape and save the cost of the waste discharge tape.

Claims

1. A swing-arm type waste discharge method that can save adhesive tape, wherein the lower pressure roller of the waste discharge device and the roller of the material to be die-cut rotate in opposite directions, characterized in that: The steps include: S1. When the waste part to be discharged on the material to be die-cut reaches between the lower pressure roller of the waste discharge tape and the supporting roller of the material to be die-cut, the protrusion of the lower pressure roller of the waste discharge tape presses down the adhesive side of the waste discharge tape to stick the waste part to be discharged; S2. Under the joint action of the protrusion of the waste discharge tape lower pressure roller and the roller of the material to be die-cut, the waste discharge tape with the waste discharge part to be discharged is conveyed to the waste discharge tape one-way conveying assembly located between the waste discharge tape lower pressure roller and the waste discharge tape receiving assembly; at the same time, the swing arm frame swings synchronously with the waste discharge tape, and when the waste discharge tape moves forward to a first predetermined length, the swing arm frame stops swinging, and the protrusion continues to drive the waste discharge tape to move forward to a second predetermined length, and the sum of the first predetermined length and the second predetermined length is equal to the width of the protrusion; S3, the second predetermined length of the waste tape passes through the waste tape one-way conveying assembly and is then reeled up by the waste tape receiving assembly; S4, when the waste discharge tape is separated from the protrusion of the lower pressure roller of the waste discharge tape, the swing arm frame rotates under the action of the return elastic member, so that the waste discharge tape retreats a first predetermined length and then stops; S5. Repeat steps S1-S4 until the material to be die-cut is completely rolled up.

2. The swing-arm type waste discharge method capable of saving adhesive tape according to claim 1, characterized in that: The power of the waste tape lower pressure roller is provided by the first motor, the power of the waste tape discharge assembly is provided by the second motor, and the power of the waste tape collection assembly is provided by the third motor. The first motor, the second motor and the third motor are controlled by a control circuit.

3. The swing-arm type waste discharge method capable of saving adhesive tape according to claim 1 or 2, characterized in that: When the protrusion of the waste discharge tape lower pressure roller presses on the waste discharge part on the material to be die-cut roller, the torque relationship of the waste discharge tape is that the downward pressure friction force (F5) between the protrusion of the waste discharge tape lower pressure roller and the material to be die-cut roller is greater than the rewinding force (F1) of the waste discharge tape unwinding component, the rewinding force (F1) of the waste discharge tape unwinding component is greater than the swing arm rebound force (F3) of the return elastic member; and the rewinding force (F4) of the waste discharge tape rewinding component is greater than the friction force (F2) of the waste discharge tape one-way conveying component.

4. A waste discharge device for a die-cutting machine, comprising a waste discharge tape discharge assembly (14), a waste discharge tape lower pressure roller (12) and a waste discharge tape receiving assembly (22), characterized in that: A waste tape one-way conveying assembly (19) is provided between the waste tape lower pressure roller (12) and the waste tape receiving assembly (22); a swing arm frame (15) is provided between the waste tape one-way conveying assembly (19) and the waste tape unwinding assembly (14); the swing arm frame (15) comprises a first support member (151), a second support member (152) and a connecting member (153); the first support member (151) and the second support member (152) are arranged in parallel at a predetermined distance; the connecting member (153) connects the first support member (151) and the second support member (152) 2) connected as one body, a first supporting wheel (1511) and a second supporting wheel (1512) are respectively provided at both ends of the first supporting member (151), a third supporting wheel (1521) and a fourth supporting wheel (1522) are respectively provided at both ends of the second supporting member (152), a return elastic member (1513) is provided on the outer side of the middle part of the first supporting member (151), a first positioning member (16) is provided on the outer side of the second supporting member (152) on the frame plate (6), and a second positioning member (17) is provided on the outer side of the first supporting member (151) on the frame plate (6); The waste tape discharge component (14) is a constant tension return force discharge component.

5. The waste discharge device of the die cutting machine according to claim 4, characterized in that: The waste discharge tape one-way conveying component (19) is a one-way shaft.

6. The waste discharge device of the die cutting machine according to claim 4 or 5, characterized in that: The waste tape receiving component (22) is a constant tension receiving component.

7. A die-cutting machine, characterized in that: A waste discharge device comprising the die-cutting machine according to any one of claims 4 to 6.

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