Positive pressure feeding structure for paper cutting and cutting machine

Abstract

The utility model discloses a positive pressure feeding structure for paper cutting and a cutting machine, and belongs to the technical field of feeding equipment. Comprising a lifting table, a lifting plate is arranged on the lifting table, a clamping structure is connected to the lifting plate in a sliding mode, the clamping structure comprises a sliding rod, a lower clamping plate is fixed to the bottom of the sliding rod, an upper clamping plate is further connected to the sliding rod in a sliding mode, and a back plate is arranged on one side of the lower clamping plate in the vertical direction; a plurality of connecting rods are arranged on the back plate, a rotating shaft is rotationally connected between the connecting rods, a plurality of pressing rods are fixed to the rotating shaft, a roller is rotationally connected between the pressing rods, and a driving structure used for sliding on the lower clamping plate to drive the rotating shaft to rotate is arranged on the lower clamping plate. According to the feeding device, when the feeding cylinder feeds, the roller can quickly abut against the surface of a paper pile as long as the paper pile makes contact with the baffle, and paper is prevented from sliding through the abutting effect of the roller on the top of the paper pile.

Description

Technical Field

[0001] The utility model relates to a positive pressure feeding structure for paper cutting and a cutting machine, belonging to the technical field of feeding equipment. Background Art

[0002] The cutting machine is used for dividing and cutting sheets in various industries. It is controlled by system software. As long as the corresponding parameters are set on the operating platform, the cutting machine can cut quickly according to the instructions. It has a high degree of automation and is easy to operate.

[0003] The prior art includes a sliding table, a lifting table, a conveying plate, a clamping structure and a loading barrel.

[0004] During operation, the lifting platform adjusts the conveying plate to a suitable position, then lifts the paper stack through the loading cylinder, and conveys the paper stack to the conveying plate, thereby completing the paper loading process.

[0005] However, when the loading cylinder lifts the end of the paper stack, there is a height difference between the top and the bottom of the lifted paper stack, which can easily cause the top paper to slip, so that the clamping structure cannot press the paper stack tightly, which is inconvenient to use.

[0006] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a positive pressure feeding structure and a cutting machine for paper cutting, which solves the problem in the prior art that in the process of lifting the paper stack by the feeding cylinder, there is a height difference between the top and the bottom of the lifted part of the paper stack, which easily causes the top paper to slip, thereby causing the clamping structure to be unable to press the paper stack tightly, resulting in inconvenience in use.

[0008] The technical problem to be solved by the utility model is achieved by adopting the following technical scheme: a positive pressure feeding structure for paper cutting, comprising a sliding table, a lifting platform slidably connected to the sliding table, a lifting plate slidably connected to the lifting table, a conveying plate slidably connected to the lifting table, a feeding cylinder rotatably connected to one side of the conveying plate, wherein the movements of the lifting table, the lifting plate and the conveying plate are all controlled by a numerical control system and a hydraulic cylinder in this embodiment, the feeding cylinder is controlled to rotate by a servo motor, a clamping structure is slidably connected to the lifting plate, the clamping structure comprises a moving block, and a fixed bottom of the moving block A sliding rod is fixed, a lower clamping plate is fixed at the bottom of the sliding rod, an upper clamping plate is slidably connected to the sliding rod, and the bottom of the moving block is also connected to the upper clamping plate through a hydraulic rod. A back plate is vertically fixed to one side of the lower clamping plate, a plurality of connecting rods are fixed on the back plate, a rotating shaft is rotatably connected between the connecting rods, a plurality of pressure rods are fixed on the rotating shaft, a roller is rotatably connected between the pressure rods, one end of the pressure rod is tilted downward, and the roller is located between the plane where the upper clamping plate is located and the plane where the lower clamping plate is located, and a driving structure for sliding on the lower clamping plate to drive the rotating shaft to rotate is provided on the lower clamping plate.

[0009] By adopting the above technical solution, when paper needs to be loaded, the lifting platform controls the loading cylinder to approach the paper stack, and the loading cylinder rotates while lifting part of the paper stack upward. During the rotation of the loading cylinder, under the combined effect of the friction of the loading cylinder on the paper and the feeding of the conveying plate toward the inner side of the paper stack, one end of the paper stack slowly tilts up and is conveyed to the lower clamping plate, so that the paper stack contacts the driving structure and drives the driving structure to slide, thereby driving the rotating shaft to rotate, and the rotation of the rotating shaft drives the pressure rod to rotate, and the downwardly inclined pressure rod makes the roller and the part of the paper stack to be conveyed to be moved between the roller and the part of the paper stack to be conveyed. The distance between the stack of papers and the baffle plate is extremely small. As long as the paper stack contacts the baffle plate, the roller can quickly press the surface of the paper stack. The pressing effect of the roller on the top of the paper stack prevents the paper on the top of the paper stack from sliding downward under the influence of the height difference. Finally, the upper clamping plate is pressed down to clamp the end of the paper stack with the lower clamping plate, so that the entire paper stack can be compacted and transported. It is easy to use. In addition, because the roller is rotatable, when the paper stack is transported to the lower clamping plate and the upper clamping plate has not yet been pressed down, the roller can rotate with the movement of the paper, thereby avoiding obstruction to the transportation of the paper stack.

[0010] The utility model is further configured as follows: the driving structure includes a horizontal plate slidably connected to the surface of the lower clamping plate, a plurality of sliders are fixed to the bottom of the horizontal plate, a plurality of sliding grooves for the sliding of the sliders are provided on the lower clamping plate, a plurality of baffles are fixed to the horizontal plate, a plurality of through grooves are provided on the upper clamping plate, a plurality of baffles pass through the through grooves at one end and a horizontal rod is fixed between the ends passing through the through grooves, a rack is fixed on the horizontal rod, and a gear meshing with the rack is provided on the rotating shaft.

[0011] By adopting the above technical solution, when the paper stack contacts the baffle and pushes the baffle and the cross plate to slide, since the baffle is arranged parallel to the back plate, in the process of the paper stack abutting and pushing the baffle, one end of the paper stack will gradually be perpendicular to the baffle under the abutment of the baffle and the cross plate, so that one end of the paper stack remains flush, which is convenient for subsequent transportation of the paper stack. In addition, the sliding of the baffle drives the cross bar to slide, and the sliding groove limits the slider so that the cross plate can only slide along the direction of the slide groove to avoid the deviation of the cross plate, thereby avoiding the deviation of the baffle, so that the driving structure can stably drive the roller to rotate, thereby ensuring that the roller stably presses against the surface of the paper stack and prevents the paper from slipping. In addition, the sliding of the cross bar drives the sliding of the rack, and the sliding of the rack drives the rotation of the gear meshing therewith, and the rotation of the gear drives the rotation of the shaft, and the rotation of the shaft drives the roller to rotate and press against the top surface of the paper stack. The setting of the driving structure can stably drive the roller to press against the top surface of the paper stack, thereby preventing the top paper of the paper stack from slipping.

[0012] The utility model is further configured as follows: a limit rod is fixed in the through slot, a limit slot for sliding the limit rod is opened in the vertical direction on the baffle plate, an elastic member is sleeved on the limit rod, one end of the elastic member abuts the baffle plate, and the other end is fixed to the inner wall of the through slot at one end away from the drum. In this embodiment, the elastic member is a compression spring.

[0013] By adopting the above technical solution, when the paper stack drives the baffle to slide, the top of the baffle slides in the through groove, thereby driving the elastic member to compress and generate elastic force. When the paper stack is transported, the baffle no longer abuts the paper stack, and the baffle returns to its original position under the elastic force of the elastic member, making the operation more convenient. At the same time, the setting of the limit groove provides sufficient space for the upper clamping plate to press down.

[0014] The utility model is further configured as follows: a keyway is provided on the gear, and a flat key matched with the keyway is fixed on the rotating shaft.

[0015] By adopting the above technical solution, the arrangement of the flat key and the keyway enables the rotating shaft to be firmly connected to the gear, and at the same time the rotation of the gear is smoothly transmitted to the rotating shaft, thereby ensuring that the roller can be stably pressed against the top surface of the paper stack, thereby preventing the paper from slipping.

[0016] The utility model is further configured as follows: a plurality of clamping teeth are arranged on both sides of the lower surface of the upper clamping plate.

[0017] By adopting the above technical solution and providing a plurality of clamping teeth, the pressure of the upper clamping plate on the paper stack is increased, thereby improving the stability of the upper and lower clamping plates in clamping the paper stack and preventing the paper stack from slipping during transportation.

[0018] A cutting machine comprises the positive pressure feeding structure for paper cutting as described above.

[0019] The beneficial effect of the utility model is that when the feeding drum lifts the end of the paper stack to feed the paper, as long as the paper stack contacts the baffle, the roller can quickly press the surface of the paper stack, and the pressing effect of the roller on the top of the paper stack prevents the paper on the top of the paper stack from sliding downward under the influence of the height difference, which makes it easier for the clamping structure to press the paper stack tightly, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 The structure diagram of the clamping structure in the utility model is shown in FIG. Figure 1 ;

[0022] Figure 3 The structure diagram of the clamping structure in the utility model is shown in FIG. Figure 2 ;

[0023] Figure 4 It is a structural schematic diagram of the upper clamping plate in the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the gear, rotating shaft, rack and crossbar in the utility model;

[0025] Figure 6 Based Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0026] In the figure: 1. sliding table; 2. lifting table; 3. lifting plate; 4. conveying plate; 5. loading barrel; 6. moving block; 7. sliding rod; 8. lower clamping plate; 9. upper clamping plate; 10. cross plate; 11. baffle; 12. through groove; 13. cross rod; 14. rack; 15. back plate; 16. connecting rod; 17. rotating shaft; 18. gear; 19. pressure rod; 20. roller; 21. slider; 22. slide groove; 23. limiting groove; 24. limiting rod; 25. elastic member; 26. keyway; 27. flat key; 28. clamping tooth. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific illustrations.

[0028] like Figure 1 As shown, a positive pressure feeding structure for paper cutting includes a sliding table 1, a lifting platform 2 is slidably connected to the sliding table 1, a lifting plate 3 is slidably connected to the lifting table 2, a conveying plate 4 is also slidably connected to the lifting table 2, and a feeding barrel 5 is rotatably connected to the feeding side of the conveying plate 4, wherein the movements of the lifting platform 2, the lifting plate 3 and the conveying plate 4 are all controlled by a numerical control system and a hydraulic cylinder (not marked in the figure) in this embodiment, and the feeding barrel 5 is controlled to rotate by a servo motor (not marked in the figure), which will not be repeated later.

[0029] like Figure 1 and Figure 2 As shown, the lifting plate 3 is slidably connected with a clamping structure, and the clamping structure includes a moving block 6, a sliding rod 7 is fixed at the bottom of the moving block 6, a lower clamping plate 8 is fixed at the bottom of the sliding rod 7, an upper clamping plate 9 is also slidably connected to the sliding rod 7, and the bottom of the moving block 6 is also connected to the upper clamping plate 9 through a hydraulic rod, a back plate 15 is fixed to one side of the lower clamping plate 8 in the vertical direction, a plurality of connecting rods 16 are fixed on the back plate 15, a rotating shaft 17 is rotatably connected between the plurality of connecting rods 16, a plurality of pressure rods 19 are fixed on the rotating shaft 17, a roller 20 is rotatably connected between the plurality of pressure rods 19, one end of the pressure rod 19 is tilted downward, and the roller 20 is located between the plane where the upper clamping plate 9 is located and the plane where the lower clamping plate 8 is located, and a driving structure for sliding on the lower clamping plate 8 to drive the rotating shaft 17 to rotate is provided on the lower clamping plate 8.

[0030] When paper is needed to be loaded, the lifting platform 2 controls the loading cylinder 5 to approach the paper pile, and the loading cylinder 5 rotates and lifts the paper pile upward. During the rotation of the loading cylinder 5, under the combined action of the friction of the loading cylinder 5 on the paper and the feeding of the conveying plate 4 toward the inner side of the paper pile, one end of the paper pile is slowly tilted and conveyed to the lower clamping plate 8, so that the paper pile contacts the driving structure and pushes the driving structure to slide, thereby driving the rotating shaft 17 to rotate, and the rotation of the rotating shaft 17 drives the pressure rod 19 to rotate. The downwardly inclined pressure rod 19 makes the distance between the roller 20 and the part of the paper pile to be conveyed extremely small. As long as the paper pile contacts the baffle 11, the roller 20 can quickly press the surface of the paper pile. The pressing effect of the roller 20 on the top of the paper pile prevents the paper at the top of the paper pile from sliding downward under the influence of the height difference. Finally, the upper clamping plate 9 is pressed down to clamp the end of the paper pile with the lower clamping plate 8, so that the entire paper pile can be pressed and conveyed, which is convenient to use.

[0031] Among them, since the roller 20 is rotatably arranged, when the paper stack is conveyed to the lower clamping plate 8 and the upper clamping plate 9 is not yet pressed down, the roller 20 can rotate with the movement of the paper, thereby avoiding obstruction of the paper stack conveyance.

[0032] like Figure 3 As shown, the driving structure includes a transverse plate 10 slidably connected to the surface of the lower clamping plate 8, a plurality of sliders 21 are fixed at the bottom of the transverse plate 10, a plurality of slide grooves 22 for the sliders 21 to slide are provided on the lower clamping plate 8, a plurality of baffles 11 parallel to the back plate 15 are fixed on the transverse plate 10, a plurality of through grooves 12 are provided on the upper clamping plate 9, a transverse bar 13 is fixed between one end of the baffles 11 passing through the through grooves 12 and one end passing through the through grooves 12, a rack 14 is fixed on the transverse bar 13, and a gear 18 meshing with the rack 14 is provided on the rotating shaft 17.

[0033] When the paper stack contacts the baffle 11 and pushes the baffle 11 and the cross plate 10 to slide, since the baffle 11 and the cross plate 10 are arranged parallel to the back plate 15, during the process of the paper stack abutting and pushing the baffle 11, one end of the paper stack will gradually become perpendicular to the baffle 11 under the abutment of the baffle 11 and the cross plate 10, so that one end of the paper stack remains flush, which is convenient for subsequent transportation of the paper stack. In addition, the sliding of the baffle 11 drives the cross bar 13 to slide, and the sliding groove 22 limits the slider 21, so that the cross plate 10 can only slide along the direction of the sliding groove 22, avoiding the deviation of the cross plate 10, thereby avoiding the deviation of the baffle 11, so that the driving structure can stably drive the roller 20 to rotate, thereby ensuring that the roller 20 stably presses against the surface of the paper stack to prevent the paper from slipping.

[0034] In addition, the sliding of the cross bar 13 drives the rack 14 to slide, and the sliding of the rack 14 drives the gear 18 meshing therewith to rotate, and the rotation of the gear 18 drives the rotating shaft 17 to rotate, and the rotation of the rotating shaft 17 drives the roller 20 to rotate and press against the top surface of the paper stack. The setting of the driving structure can stably drive the roller 20 to press against the top surface of the paper stack, thereby preventing the top paper of the paper stack from slipping.

[0035] like Figure 2 As shown, a limit rod 24 is fixed in the through slot 12, a limit slot 23 for the limit rod 24 to slide is opened on the baffle 11 in the vertical direction, an elastic member 25 is sleeved on the limit rod 24, one end of the elastic member 25 abuts the baffle 11, and the other end is fixed to the inner wall of the through slot 12 at one end away from the drum 20. In this embodiment, the elastic member 25 is a compression spring.

[0036] When the paper stack drives the baffle 11 to slide, the top of the baffle 11 slides in the through groove 12, thereby driving the elastic member 25 to be compressed and generate elastic force. When the paper stack is transported, the baffle 11 no longer abuts against the paper stack, and the baffle 11 will return to its original position under the elastic force of the elastic member 25, so as to facilitate the subsequent clamping of the next paper stack, making the operation more convenient. At the same time, the setting of the limit groove 23 provides sufficient space for the upper clamping plate 9 to press down.

[0037] like Figure 6 As shown, a key groove 26 is provided on the inner peripheral wall of the gear 18 , and a flat key 27 matching with the key groove 26 is fixed on the rotating shaft 17 .

[0038] The arrangement of the flat key 27 and the keyway 26 allows the shaft 17 to be firmly connected to the gear 18, and the rotation of the gear 18 is smoothly transmitted to the shaft 17, thereby ensuring that the roller 20 can be stably pressed against the top surface of the paper pile, thereby preventing the paper from slipping.

[0039] like Figure 4 As shown, a plurality of clamping teeth 28 are provided on both sides of the lower surface of the upper clamping plate 9 .

[0040] The provision of a plurality of clamping teeth 28 increases the pressure of the upper clamping plate 9 on the paper stack, thereby improving the stability of the upper clamping plate 9 and the lower clamping plate 8 in clamping the paper stack and preventing the paper stack from slipping during transportation.

[0041] The embodiment of the utility model further provides a cutting machine using the positive pressure feeding structure for paper cutting, comprising the positive pressure feeding structure for paper cutting as described above.

[0042] Since the cutting machine adopts all the technical solutions of the positive pressure feeding structure for paper cutting of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be described in detail here.

[0043] Working principle:

[0044] When the paper stack needs to be loaded, the lifting platform 2 controls the loading cylinder 5 to approach the paper stack, and the loading cylinder 5 rotates while lifting part of the paper stack upward. During the rotation of the loading cylinder 5, due to the friction of the loading cylinder 5 on the paper and the feeding of the conveying plate 4 toward the inner side of the paper stack, one end of the paper stack slowly rises and is conveyed to the lower clamping plate 8.

[0045] Then the paper stack will push the baffle 11 and the cross plate 10 to slide, the sliding of the baffle 11 drives the cross bar 13 to slide, the sliding of the cross bar 13 drives the rack 14 to slide, the sliding of the rack 14 drives the gear 18 meshing therewith to rotate, the rotation of the gear 18 drives the shaft 17 to rotate, the rotation of the shaft 17 drives the roller 20 to rotate and press against the top surface of the paper stack, thereby preventing the paper on the top of the paper stack from slipping.

[0046] When the paper stack drives the baffle 11 to slide, the top of the baffle 11 slides in the through groove 12, thereby driving the elastic member 25 to compress and generate elastic force. When the paper stack is transported, the baffle 11 no longer abuts the paper stack, and the baffle 11 returns to its original position under the elastic force of the elastic member 25, which is convenient for the subsequent loading of paper stacks.

[0047] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A positive pressure feeding structure for paper cutting, comprising a lifting platform (2), characterized in that: The lifting platform (2) is provided with a lifting plate (3), and a clamping structure is slidably connected to the lifting plate (3), and the clamping structure comprises a sliding rod (7), a lower clamping plate (8) is fixed at the bottom of the sliding rod (7), and an upper clamping plate (9) is also slidably connected to the sliding rod (7), and a back plate (15) is provided on one side of the lower clamping plate (8), and a plurality of connecting rods (16) are provided on the back plate (15), and a rotating shaft (17) is rotatably connected between the plurality of connecting rods (16), and a plurality of pressure rods (19) are fixed on the rotating shaft (17), and a roller (20) is rotatably connected between the plurality of pressure rods (19), and a driving structure for sliding on the lower clamping plate (8) to drive the rotating shaft (17) to rotate is provided on the lower clamping plate (8).

2. A positive pressure feeding structure for paper cutting according to claim 1, characterized in that: The driving structure comprises a transverse plate (10) slidably connected to the surface of the lower clamping plate (8), a plurality of baffles (11) are arranged on the transverse plate (10), a plurality of through slots (12) are opened on the upper clamping plate (9), one end of the plurality of baffles (11) passes through the through slots (12) and a transverse rod (13) is connected between the ends passing through the through slots (12), a rack (14) is arranged on the transverse rod (13), and a gear (18) meshing with the rack (14) is arranged on the rotating shaft (17).

3. The positive pressure feeding structure for paper cutting according to claim 1, characterized in that: One end of the pressure rod (19) is arranged to be tilted downward.

4. The positive pressure feeding structure for paper cutting according to claim 2, characterized in that: A plurality of sliding blocks (21) are arranged at the bottom of the transverse plate (10), and a plurality of sliding grooves (22) for the sliding blocks (21) are arranged on the lower clamping plate (8).

5. The positive pressure feeding structure for paper cutting according to claim 2, characterized in that: A limiting rod (24) is arranged in the through groove (12), a limiting groove (23) for the limiting rod (24) to slide is provided on the baffle plate (11) in the vertical direction, and an elastic member (25) with one end abutting against the baffle plate (11) is sleeved on the limiting rod (24).

6. The positive pressure feeding structure for paper cutting according to claim 2, characterized in that: A keyway (26) is provided on the inner peripheral wall of the gear (18), and a flat key (27) for being inserted into the keyway (26) is provided on the rotating shaft (17).

7. The positive pressure feeding structure for paper cutting according to claim 1, characterized in that: A plurality of clamping teeth (28) are provided on both sides of the lower surface of the upper clamping plate (9).

8. A cutting machine, characterized in that: The invention comprises the positive pressure feeding structure according to any one of claims 1 to 7.

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