Perforator tipping paper ejecting device

Abstract

The utility model discloses a puncher is with splicing paper rejection device, it belongs to splicing paper production equipment technical field, including auxiliary winding subassembly, punch detection element, guide rail and drive element, the lower end of guide rail extends to the winding roll side, auxiliary winding subassembly includes elevating support, and elevating support slides along guide rail under the drive of drive element, the front of elevating support is equipped with first guide support, auxiliary guide roller and second guide support, and auxiliary guide roller can rotate relative to elevating support, and first guide support, second guide support all are fixedly connected elevating support in upper end, and the lower end of first guide support is rotatably installed with auxiliary winding roller, and the lower end of second guide support is equipped with cutter and air jet nozzle, and auxiliary guide roller is higher than cutter and auxiliary winding roller, in the conveying direction of splicing paper, air jet nozzle, cutter, auxiliary guide roller and auxiliary winding roller are sequentially arranged, and splicing paper rejection is realized automatically, and need not rewinding, and the production efficiency of splicing paper has been improved greatly.

Description

Technical Field

[0001] This utility model relates to the technical field of tipping paper production equipment, specifically to a tipping paper rejection device for a punching machine. Background Technology

[0002] Tipping paper is an important cigarette auxiliary material connecting tobacco and filters, and it needs to be perforated. Existing perforation methods include mechanical perforation, laser perforation, electrostatic perforation, and plasma perforation. Before perforation, the tipping paper is unwound and manually wound onto the guide roller and take-up roller. The paper passes through the perforation device under the guidance of the guide roller. During the perforation operation, the rotation of the take-up roller moves the paper, and the paper is perforated by the perforation device. Since the paper pre-wound between the take-up roller and the perforation device cannot be perforated again, a certain length of unperforated paper is wound onto the take-up roller. In traditional production processes, in order to remove the unperforated tipping paper wound on the innermost side of the take-up roller, the processed tipping paper roll needs to be rewound, but this operation greatly increases production time and affects production efficiency. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a splice paper rejection device for a punching machine, which can assist the punching machine in rejecting unpunched splice paper without rewinding, greatly reducing production time and improving production efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a paper tipping rejection device for a punching machine, used to assist the punching machine in rejecting paper tipping during the initial stage of punching operation; the punching machine has a punching device and a take-up roller on its wall panel; the paper tipping rejection device for the punching machine includes an auxiliary take-up assembly, a punching detection element, a guide rail and a drive element; The guide rail is fixedly installed on the wall panel, and its lower end extends toward the take-up roller. The auxiliary winding assembly includes a lifting bracket, the rear side of which is connected to the guide rail and slides along the guide rail under the drive of the driving element; a first guide bracket, an auxiliary guide roller, and a second guide bracket are provided at the front of the lifting bracket; the lifting bracket extends horizontally, and the auxiliary guide roller is located between the first guide bracket and the second guide bracket in its length direction; the auxiliary guide roller can rotate relative to the lifting bracket; the upper ends of the first guide bracket and the second guide bracket are fixedly connected to the lifting bracket, and the lower ends extend inclinedly toward the auxiliary guide roller; An auxiliary take-up roller is rotatably mounted on the lower end of the first guide bracket, and a cutter and an air nozzle are provided on the lower end of the second guide bracket. The auxiliary guide roller is higher than the cutter and the auxiliary take-up roller. In the feeding direction of the tipping paper, the air nozzle, the cutter, the auxiliary guide roller and the auxiliary take-up roller are arranged in sequence, and the air nozzle sprays air in the direction of the tipping paper.

[0005] In the above-mentioned paper rejection device for a punching machine, the first guide bracket is provided with a first cylinder and a first sliding bracket. The first sliding bracket is slidably mounted on the front side of the first guide bracket. The first cylinder is fixed at the upper end of the first guide bracket and can push the first sliding bracket. The auxiliary take-up roller is rotatably mounted at the lower end of the first sliding bracket.

[0006] In the above-mentioned paper rejection device for punching machine, a second cylinder is provided on the second guide bracket, the cylinder body of the second cylinder is fixed on the second guide bracket, and the piston rod is fixedly connected to the cutter.

[0007] In the aforementioned paper rejection device for a punching machine, the driving element is a cylinder.

[0008] In the aforementioned paper rejection device for a punching machine, there are two air nozzles, located on the front and rear sides of the cutter, respectively.

[0009] The aforementioned splice paper rejection device for a punching machine also includes a punching detection element for detecting whether the punching of the splice paper meets the requirements; in the conveying direction of the splice paper, the punching detection element is located on the downstream side of the punching device.

[0010] In the aforementioned paper rejection device for a punching machine, an appearance inspection element is provided on the downstream side of the punching detection element.

[0011] In the above-mentioned paper rejection device for a punching machine, a floating wheel is provided on the lifting bracket, and the floating wheel is parallel to the auxiliary guide roller; the floating wheel is mounted on the lifting bracket through a swing bracket; the swing bracket has a tendency to push the floating wheel toward the auxiliary guide roller.

[0012] In the aforementioned paper rejection device for a punching machine, a protective cover is provided on the second guide bracket to shield the cutter.

[0013] The beneficial effects of this utility model are as follows: The tipping paper rejection device utilizes an auxiliary winding assembly, a perforation detection element, a guide rail, and a drive element to directly wind unperforated or poorly perforated tipping paper onto the auxiliary winding roller. The auxiliary guide roller is higher than the cutter and the auxiliary winding roller, and also higher than the winding roller, thus providing the operating conditions for the cutter to cut the tipping paper. Unperforated tipping paper downstream of the cutting position is wound onto the auxiliary winding roller, while perforated tipping paper upstream of the cutting position is pressed against the winding roller by the gas output from the air nozzle and wound up by the winding roller. This automatically removes tipping paper without rewinding, greatly improving the production efficiency of tipping paper. The auxiliary take-up roller uses the take-up roller as a drive. The rotation of the take-up roller drives the auxiliary take-up roller to rotate and rewind. No additional power components are required, which simplifies the structure of the splice paper rejection device and facilitates manufacturing. It also makes it easy to use on existing punching machines, which facilitates its widespread application. The auxiliary take-up roller can be finely adjusted in position under the control of the first cylinder and the first sliding bracket, which can better control the contact force between it and the take-up roller. In particular, the center distance between it and the take-up roller can be adjusted according to the amount of winding of the auxiliary take-up roller. The cutter, auxiliary take-up roller, and lifting bracket are all driven and controlled by cylinders, which is clean and pollution-free, and suitable for the production of spliced ​​paper; The floating wheel ensures that after the splice paper is cut, the downstream splice paper can continue to move forward along its own path and wrap around the auxiliary take-up roller, preventing the broken end of the splice paper from drifting and affecting the equipment's performance. Attached Figure Description

[0014] Figure 1 A schematic diagram showing the usage of the tipping paper rejection device on a hole puncher. Figure 2 A first-view schematic diagram of a paper rejection device for a punching machine; Figure 3 A second-view schematic diagram of a paper rejection device for a punching machine; Figure 4 This is a schematic diagram showing the state of the feed paper when switching between the take-up roller and the auxiliary take-up roller; Figure 5 A schematic diagram showing the usage status of the floating wheel in the paper rejection device for a punching machine.

[0015] In the picture: 100-Wall panel; 101-Unwinding roller; 102-Guide roller; 103-Drilling device; 104-Rewinding roller; 105-Through hole; 200 - Splicing paper; 300 - Perforation detection element; 400 - Screen curtain; 500 - Appearance inspection element; 600 - Guide rail; 700-Auxiliary winding assembly; 701-Lifting bracket; 702-Groove; 703-First guide bracket; 704-First cylinder; 705-First sliding bracket; 706-Auxiliary winding roller; 707-Auxiliary guide roller; 708-Cutter; 709-Protective cover; 710-Air nozzle; 711-Second guide bracket; 712-Second cylinder; 713-Swing bracket; 714-Floating wheel; 800-Drive element. Detailed Implementation

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Please refer to Figure 1 The wall panel 100 of the punching machine is equipped with an unwinding roller 101, several guide rollers 102, a punching device 103, and a take-up roller 104; the paper 200 is wound around the unwinding roller 101, several guide rollers 102, and take-up roller 104, and is wound up after being punched by the punching device 103.

[0018] A tipping paper rejection device is provided on the wall panel 100 to reject unperforated tipping paper 200, preventing it from being wound onto the take-up roller 104. The tipping paper rejection device includes an auxiliary take-up assembly 700, a perforation detection element 300, a guide rail 600, and a drive element 800. The guide rail 600 is fixedly mounted on the wall panel 100, located above the take-up roller 104, with its lower end adjacent to the take-up roller 104; preferably, the guide rail 600 is vertically positioned for ease of installation and control of its installation accuracy. The auxiliary take-up assembly 700 is slidably mounted on the guide rail 600. Under the control of the drive element 800, the auxiliary take-up assembly 700 slides and rises along the guide rail 600, thereby approaching or moving away from the take-up roller 104.

[0019] For details, please refer to Figure 2 , Figure 3 The auxiliary winding assembly 700 includes a lifting bracket 701. The back of the lifting bracket 701 is provided with a sliding groove 702. The sliding groove 702 is slidably engaged with the guide rail 600 to limit and guide the movement of the lifting bracket 701.

[0020] The lifting bracket 701 has a first guide bracket 703, an auxiliary guide roller 707, and a second guide bracket 711 at its front. The lifting bracket 701 extends horizontally, and the auxiliary guide roller 707 is located between the first guide bracket 703 and the second guide bracket 711 along its length. The auxiliary guide roller 707 can rotate relative to the lifting bracket 701. The first guide bracket 703 and the second guide bracket 711 are respectively fixed to both ends of the lifting bracket 701 and can be detachably connected by bolts, screws, or other connectors, or can be directly fixed to the lifting bracket 701 by welding or other methods.

[0021] The first guide bracket 703 is a plate component. However, depending on the requirements, the first guide bracket 703 can also be a frame structure to support and bear the first cylinder 704 and the first sliding bracket 705. The upper end of the first guide bracket 703 is fixedly connected to the lifting bracket 701, and the lower end extends obliquely towards the auxiliary guide roller 707. The first sliding bracket 705 is slidably mounted on the front side of the first guide bracket 703. For example, the front side of the first guide bracket 703 is machined with guide grooves, preferably two, extending along the length of the first guide bracket 703. A slider is provided on the back of the first sliding bracket 705, and the slider is slidably connected to the guide grooves. The first cylinder 704 is fixed to the upper end of the first guide bracket 703, and the piston rod is connected to the first sliding bracket 705. An auxiliary take-up roller 706 is rotatably mounted on the lower end of the first sliding bracket 705. Controlling the piston rod's movement pushes the first sliding bracket 705, and the auxiliary take-up roller 706 moves synchronously with the first sliding bracket 705, approaching or moving away from the take-up roller 104.

[0022] The upper end of the second guide bracket 711 is fixedly connected to the lifting bracket 701, and the lower end extends obliquely toward the auxiliary guide roller 707. A second cylinder 712 is mounted on the second guide bracket 711. The cylinder body of the second cylinder 712 is fixed to the second guide bracket 711, and a cutter 708 is fixedly connected to the piston rod, moving with the piston rod. Preferably, a guide structure is provided between the cutter 708 and the second guide bracket 711, such as the cooperation of a boss and a groove to achieve sliding guidance.

[0023] The second guide bracket 711 is also equipped with an air nozzle 710, which can be directly fixed to the second guide bracket 711. There are two air nozzles 710, located on the front and rear sides of the cutter 708 respectively. In the conveying direction of the paper 200, the cutter 708 is located downstream of the air nozzles 710.

[0024] The auxiliary guide roller 707 is located above the take-up roller 104, while the auxiliary take-up roller 706 and cutter 708 are located below and to the left and right of the auxiliary guide roller 707. In the initial stage of the punching operation, the feed paper 200, after passing over the take-up roller 104, continues to pass over the auxiliary guide roller 707, and finally, the end of the feed paper 200 is fixed on the auxiliary take-up roller 706. In the conveying direction of the feed paper 200, the cutter 708 is located upstream of the auxiliary guide roller 707, and the auxiliary take-up roller 706 is located downstream of the auxiliary guide roller 707. The length direction of the cutting edge of the cutter 708 is parallel to the axial direction of both the auxiliary guide roller 707 and the auxiliary take-up roller 706. Figure 4As shown, the auxiliary winding assembly 700 descends, during which the tightness of the spliced ​​paper is manually controlled to avoid folding that could affect subsequent winding. After the auxiliary winding roller 706 comes into contact with the winding roller 104, the auxiliary winding assembly 700 stops descending. The winding roller 104 is controlled to rotate, driving the auxiliary winding roller 706 to rotate, and the initial section of the spliced ​​paper 200 is wound onto the auxiliary winding roller 706. After a certain length is wound, that is, after the spliced ​​paper 200 that meets the perforation requirements passes through the winding roller 104, the cutter 708 descends to cut the spliced ​​paper 200. The blade 708 has multiple dot-shaped cutting sections, forming multiple cutting points in the width direction of the tipping paper 200, which reduces the strength of the tipping paper 200. As the auxiliary take-up roller 706 continues to rotate and the air jet nozzle 710 sprays airflow onto the tipping paper 200, pressing the tipping paper onto the take-up roller 104, the tipping paper 200 is pulled apart under the combined forces. The part before the break point continues to be wound by the auxiliary take-up roller 706, while the part after the break point is wrapped around the take-up roller 104. In this way, the un-perforated or perforated parts that do not meet the requirements are removed.

[0025] In the conveying direction of the tipping paper 200, a punching detection element 300 can be installed on the downstream side of the punching device 103 to detect whether the punching of the tipping paper 200 meets the requirements. When the punching machine is running, after the punching detection element 300 detects that the punching quality of the tipping paper 200 meets the requirements, the control system controls the second cylinder 712 to cut the tipping paper 200. It should be noted that the punching detection element 300 controls the second cylinder 712 to operate only after a certain interval after detecting that the tipping paper 200 meets the requirements. This is because there is still a certain length of unpunched or unqualified tipping paper 200 between the detection part of the punching detection element 300 and the cutting part of the cutter 708. This ensures that this part of the tipping paper is completely wrapped around the auxiliary take-up roller 706 before the cutting operation is performed.

[0026] Furthermore, a visual inspection element 500 is provided downstream of the punch detection element 300 to detect the printed patterns, hot stamping patterns, etc. on the splicing paper 200. Both the punch detection element 300 and the visual inspection element 500 use industrial cameras, and their detection principles are existing technologies, which will not be elaborated here.

[0027] To accommodate the air passages of the first cylinder 704 and the second cylinder 712, the wall panel 100 has a through hole 105. The through hole 105 is an elongated hole, parallel to the guide rail 600 and located on one side of the guide rail 600. A shielding curtain 400 covers the front of the through hole 105. The shielding curtain 400 has a frame and bristles. The frame is fixedly connected to the wall panel 100, and one end of the bristles is connected to the frame, while the other end extends to the through hole 105, preferably completely covering it. The bristles have sufficient strength to extend horizontally and can also deform to avoid vertically moving gas passages, returning to their shielded state after the avoidance is complete.

[0028] The drive element 800 also uses a cylinder, and its piston rod is rotatably connected to the lifting bracket 701. The drive element 800, the first cylinder 704, and the second cylinder 712 all use air as a source, which has good cleanliness and can avoid pollution caused by leakage from hydraulic cylinders, etc.

[0029] Furthermore, such as Figure 5 As shown, a floating wheel 714 is provided on the lifting bracket 701. The floating wheel 714 is parallel to the auxiliary guide roller 707 and abuts against the upper part of the auxiliary guide roller 707. Exemplarily, the floating wheel 714 is mounted on the lifting bracket 701 via a swing bracket 713. The floating wheel 714 can rotate relative to the swing bracket 713, while the swing bracket 713 has a tendency to push the floating wheel 714 toward the auxiliary guide roller 707. For example, a torsion spring is provided between the swing bracket 713 and the lifting bracket 701. The floating wheel 714 can press the tipping paper 200 onto the auxiliary guide roller 707. In particular, when the tipping paper 200 is cut, it can ensure that the tipping paper 200 upstream of the cut point continues to move along the original path and wrap around the auxiliary take-up roller 706.

[0030] The second guide bracket 711 is also equipped with a protective cover 709 to shield the cutter 708. In particular, the cutter 709 is shielded on the side facing the receiving paper 200 to avoid accidental injury to the operator when wrapping the receiving paper 200. When cutting the receiving paper 200, the cutter 708 is pushed out by the second cylinder 712.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A paper tipping device for a punching machine, used to assist the punching machine in removing paper tipping (200) during the initial stage of punching operation; the punching machine's wall panel (100) is provided with a punching device (103) and a take-up roller (104); characterized in that, The paper rejection device for the punching machine includes an auxiliary winding assembly (700), a punching detection element (300), a guide rail (600), and a driving element (800). The guide rail (600) is fixedly installed on the wall panel (100), and its lower end extends toward the take-up roller (104); The auxiliary winding assembly (700) includes a lifting bracket (701), the rear side of which is connected to the guide rail (600) and slides along the guide rail (600) under the drive of the driving element (800); the front of the lifting bracket (701) is provided with a first guide bracket (703), an auxiliary guide roller (707), and a second guide bracket (711); the lifting bracket (701) extends horizontally, and in its length direction, the auxiliary guide roller (707) is located between the first guide bracket (703) and the second guide bracket (711); the auxiliary guide roller (707) can rotate relative to the lifting bracket (701); the upper ends of the first guide bracket (703) and the second guide bracket (711) are fixedly connected to the lifting bracket (701), and the lower ends extend obliquely toward the auxiliary guide roller (707); An auxiliary take-up roller (706) is rotatably mounted on the lower end of the first guide bracket (703), and a cutter (708) and an air nozzle (710) are provided on the lower end of the second guide bracket (711). The auxiliary guide roller (707) is higher than the cutter (708) and the auxiliary take-up roller (706). In the conveying direction of the tipping paper (200), the air nozzle (710), the cutter (708), the auxiliary guide roller (707) and the auxiliary take-up roller (706) are arranged in sequence, and the air nozzle (710) sprays air towards the tipping paper (200).

2. The paper rejection device for a punching machine according to claim 1, characterized in that, The first guide bracket (703) is provided with a first cylinder (704) and a first sliding bracket (705). The first sliding bracket (705) is slidably mounted on the front side of the first guide bracket (703). The first cylinder (704) is fixed at the upper end of the first guide bracket (703) and can push the first sliding bracket (705). The auxiliary take-up roller (706) is rotatably mounted at the lower end of the first sliding bracket (705).

3. The paper rejection device for a punching machine according to claim 2, characterized in that, The second guide bracket (711) is provided with a second cylinder (712), the cylinder body of the second cylinder (712) is fixed on the second guide bracket (711), and the piston rod is fixedly connected to the cutter (708).

4. The paper rejection device for a punching machine according to claim 3, characterized in that, The drive element (800) is a cylinder.

5. The paper rejection device for a punching machine according to claim 1, characterized in that, There are two jet nozzles (710), located on the front and rear sides of the cutter (708) respectively.

6. The paper rejection device for a punching machine according to claim 1, characterized in that, It also includes a punch detection element (300) for detecting whether the punching of the splice paper (200) meets the requirements; in the conveying direction of the splice paper (200), the punch detection element (300) is located downstream of the punching device (103).

7. The paper rejection device for a punching machine according to claim 1, characterized in that, A visual inspection element (500) is provided on the downstream side of the perforation detection element (300).

8. The paper rejection device for a punching machine according to claim 1, characterized in that, The lifting bracket (701) is provided with a floating wheel (714), which is parallel to the auxiliary guide roller (707); the floating wheel (714) is mounted on the lifting bracket (701) via a swing bracket (713); the swing bracket (713) has a tendency to push the floating wheel (714) toward the auxiliary guide roller (707).

9. The paper rejection device for a punching machine according to claim 1, characterized in that, The second guide bracket (711) is provided with a protective cover (709) to cover the cutter (708).

Images