An anti-blocking self-cleaning pneumatic paper feeding device

Abstract

The present invention discloses an anti-blocking self-cleaning pneumatic paper feeding device, which relates to the technical field of pneumatic paper feeding devices, and comprises a base, wherein a motor is mounted on the outer wall of the base, a roller is mounted in the inner cavity of the base, and an air suction hole is opened in the outer wall of the roller, wherein the motor is used to drive the roller to rotate, and the inner cavity of the base is located on both sides of the roller and guide rollers are mounted, and further comprises a brush, a filtering mechanism and a replacement mechanism. The present invention sets a filtering mechanism and a brush, and when the roller rotates, the brush contacts the top of the roller, and the brush brushes the surface of the roller to prevent the air suction hole on the roller from being blocked. At the same time, the impurities brushed off are sucked into the air suction seat along with the air, and when the air passes through the air inlet, the filter frame filters the impurities in the air to prevent the impurities from entering the air suction seat and being sucked away by the air suction pipe; the design facilitates automatic brushing and cleaning of the surface of the roller to prevent the air suction hole from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of pneumatic paper feeding devices, in particular to an anti-blocking self-cleaning pneumatic paper feeding device. Background Art

[0002] Traditionally, paper machines generally use three methods for paper threading: manual paper threading, rope paper threading, and ropeless paper threading. Manual paper threading has been gradually replaced due to its high labor intensity, slow speed, high labor cost, and potential safety hazards; rope paper threading is generally used for medium and low-speed paper machines, but during operation, it is easy to have a series of problems such as paper threading rope falling off, serious wear of paper threading rope, and paper threading speed difference leading to paper breakage. Ropeless paper threading is currently a more commonly used paper threading method, and can be used for paper threading operations in high-speed paper machines. Ropeless paper threading currently mainly uses vacuum paper threading. Generally, the vacuum paper threading device is connected to the drum through an air suction device, and suction is provided through the air suction holes on the drum. When the paper fits against the outer wall of the drum, an air pressure difference is generated between the inside and outside of the drum, and the paper is adsorbed and then transmitted.

[0003] However, when the roller is in use, it is easy for debris to block the air suction holes on the roller, thereby affecting the adsorption effect of the roller and causing the paper threading operation to be unstable. In order to prevent the air suction holes on the roller from being blocked, an anti-blocking self-cleaning pneumatic paper threading device is provided. Summary of the invention

[0004] The object of the present invention is to provide an anti-blocking self-cleaning pneumatic paper feeding device in order to prevent the air suction holes on the drum from being blocked.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-blocking self-cleaning pneumatic paper feeding device, comprising a base, a motor is installed on the outer wall of the base, a roller is installed in the inner cavity of the base, and an air suction hole is opened on the outer wall of the roller, and the motor is used to drive the roller to rotate, and the inner cavity of the base is located on both sides of the roller and guide rollers are installed, and a guide frame is arranged between the roller and the guide roller, and the guide frame is "S"-shaped, and the upper end of the guide frame is located above the guide roller, and the lower end of the guide frame is gradually thinner and is slidably fitted with the lower side of the roller; an air suction seat is arranged above the roller, one end of the air suction seat is fixedly connected with an air suction pipe, and both sides of the bottom end of the air suction seat are fixedly connected with partitions, and the guide frame and the air suction seat are fixedly connected to the base, and a brush is arranged on the top of the roller, and the air entering the air suction seat is filtered by a filtering mechanism, and the brush is replaced by a replacement mechanism;

[0006] The filter mechanism includes an air inlet, which is opened at the bottom end of the suction seat, a filter frame is installed on the inner wall of the air inlet, a filter screen is installed on the filter frame, a C-shaped block extending to the inner cavity of the air inlet is symmetrically slidably connected inside the suction seat, a first spring is connected between the C-shaped block and the suction seat, and a slot is opened at the top of the filter frame.

[0007] It also includes a front auxiliary blowing device and a rear auxiliary blowing device, wherein the front auxiliary blowing device is located below the guide roller on the front side of the drum, and the front auxiliary blowing device can blow air toward the outer wall of the guide frame on the front side, and the rear auxiliary blowing device is located below the guide roller on the rear side of the drum, and the rear auxiliary blowing device can blow air toward the outer wall of the guide frame on the rear side.

[0008] As a further solution of the present invention: the filtering mechanism also includes a replacement groove, which is opened at the top of the suction seat, and the interior of the suction seat is located at the bottom end of the replacement groove and is rotatably connected with a rotating plate, and the rotating plate is rotatably connected to the suction seat through a connecting shaft, and the outer wall of the connecting shaft between the rotating plate and the suction seat is connected to a torsion spring, the top of the inner wall of the replacement groove is slidably connected with a baffle, the outer wall of the baffle is slidably connected with a plug rod that passes through the baffle, the outer wall of the plug rod is fixedly connected with a cross plate, and a second spring is connected between the baffle and the cross plate.

[0009] As a further solution of the present invention: the replacement mechanism includes a mounting groove, the mounting groove is opened on the outer wall of the base, the inner wall of the mounting groove is symmetrically provided with fixing grooves, the inner wall of the mounting groove is slidably connected with a mounting seat, the interior of the mounting seat is slidably connected with a fixing block extending from the mounting seat, a third spring is connected between the fixing block and the mounting seat, the interior of the mounting seat is located at the outer wall of the fixing block and is rotatably connected with a first spur gear, one end of the first spur gear is fixedly connected with a rotating block, and the rotating block is located on the outer wall of the mounting seat.

[0010] As a further scheme of the present invention: the replacement mechanism also includes a storage frame, the storage frame is fixedly connected to the outer wall of the mounting seat, the top of the brush is fixedly connected to a connecting block, the outer wall of the connecting block is provided with a groove, the bottom end of the storage frame is fixedly connected to the connecting seat, the bottom end of the connecting seat is provided with a connecting groove, the interior of the connecting seat is slidably connected with a rotatable positioning column, one end of the positioning column is provided with a first inclined surface and is located in the inner cavity of the connecting groove, the other end of the positioning column is rotatably connected with a push plate, the push plate is slidably connected to the interior of the connecting seat, a fourth spring is connected between the push plate and the connecting seat, the outer wall of the positioning column is fixedly connected to a second spur gear, the interior of the connecting seat is located at the outer wall of the second spur gear and is slidably connected with a displacement frame, the displacement frame extends out of the connecting seat, and a fifth spring is connected between the displacement frame and the connecting seat.

[0011] As a further solution of the present invention: the inner wall of the air inlet is in contact with the outer wall of the filter frame, and the two ends of the C-shaped block are respectively provided with second inclined surfaces in opposite directions.

[0012] As a further solution of the present invention: the outer wall of the bottom end of the insertion rod is in contact with the inner wall of the slot.

[0013] As a further solution of the present invention: the outer wall of the filter frame is in contact with the inner wall of the replacement tank, and the bottom outer wall of the baffle is in contact with the inner wall of the replacement tank.

[0014] As a further solution of the present invention: the inner wall of the mounting groove fits with the outer wall of the mounting seat, the outer wall of one end of the fixing block fits with the inner wall of the fixing groove, the outer wall of the fixing block is provided with a first tooth groove, and the first tooth groove is meshed with the first spur gear.

[0015] As a further solution of the present invention: the inner wall of the connecting groove fits with the outer wall of the connecting block, and the outer wall of the positioning column matches with the inner wall of the groove.

[0016] As a further solution of the present invention: the outer wall of the displacement frame is provided with a second tooth groove, and the second tooth groove is meshed with the second spur gear.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting a filtering mechanism and a brush, when the drum rotates, the brush contacts the top of the drum, and brushes the surface of the drum and the air intake holes to prevent the air intake holes on the drum from being blocked. At the same time, the impurities brushed off are sucked into the air intake seat along with the air. When the air passes through the air inlet, the filter frame equipped with a filter screen filters the impurities in the air to prevent the impurities from entering the air intake seat and being sucked away by the air intake pipe. This design facilitates automatic brushing and cleaning of the surface of the drum to prevent the air intake holes from being blocked.

[0019] 2. By setting up the filtering mechanism, the bottom end of the insertion rod is inserted into the slot on the new filter frame, and then the new filter frame is placed in the replacement slot. The displacement of the insertion rod drives the new filter frame to move into the suction seat and then into the air inlet. When the new filter frame contacts the C-shaped block, the C-shaped block is pushed to move until the C-shaped block moves out of the air inlet. The old filter frame has no support from the C-shaped block and falls along the air inlet. The C-shaped block is moved into the air inlet by the elastic force of the first spring to position the new filter frame, which is convenient for rapid replacement of the filter frame.

[0020] 3. By setting up a replacement mechanism, the replaced filter rack falls into the storage frame for collection. When cleaning the filter rack in the storage frame, the rotating block is rotated, and the rotation of the rotating block drives the first straight gear to rotate. The rotation of the first straight gear drives the fixed block to move, which squeezes the third spring. The fixed block moves out of the fixed groove, cancels the fixation of the mounting seat, and thus the mounting seat is taken out of the mounting groove, and then the storage frame is taken out of the base; this design facilitates the cleaning operation of the filter rack collected in the storage frame, and at the same time facilitates the rapid installation and removal of the brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 Schematic diagram of the internal structure of the base of the present invention (the dotted line portion indicates the direction and position of wind blowing);

[0023] Figure 3 It is a schematic diagram of the connection structure between the suction seat and the partition plate of the present invention;

[0024] Figure 4 It is a schematic diagram of the installation of the filter frame of the present invention;

[0025] Figure 5 For the present invention Figure 4 The enlarged view of point A in the middle;

[0026] Figure 6 It is a schematic diagram of the connection structure of the baffle, the plug rod and the cross plate of the present invention;

[0027] Figure 7It is a schematic diagram of the installation of the mounting base of the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the mounting base of the present invention;

[0029] Fig. 9 It is a schematic diagram of the installation of the brush of the present invention;

[0030] Fig.10 It is a schematic diagram of the installation of the displacement frame of the present invention;

[0031] Fig.11 It is a schematic diagram of the connection between the positioning column and the push plate of the present invention.

[0032] In the figure: 1, base; 2, motor; 3, drum; 4, guide roller; 5, guide frame; 6, suction seat; 7, filter mechanism; 701, air inlet; 702, filter frame; 703, C-shaped block; 704, first spring; 705, slot; 706, replacement slot; 707, rotating plate; 708, connecting shaft; 709, torsion spring; 710, baffle; 711, plug rod; 712, horizontal plate; 713, second spring; 8, replacement mechanism; 801, installation slot; 802, fixed slot; 803 , mounting seat; 804, fixing block; 805, third spring; 806, first spur gear; 807, rotating block; 808, storage frame; 809, connecting block; 810, groove; 811, connecting seat; 812, connecting groove; 813, positioning column; 814, pushing plate; 815, fourth spring; 816, second spur gear; 817, displacement frame; 818, fifth spring; 9, partition; 10, suction pipe; 11, brush; 12, front auxiliary blowing device; 13, rear auxiliary blowing device. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0035] See also Figures 1 to 11 In the embodiment of the present invention, an anti-blocking self-cleaning pneumatic paper feeding device includes a base 1, a motor 2 is installed on the outer wall of the base 1, a roller 3 is installed in the inner cavity of the base 1, and an air suction hole is opened on the outer wall of the roller 3. The motor 2 is used to drive the roller 3 to rotate. The inner cavity of the base 1 is located on both sides of the roller 3 and is provided with guide rollers 4. A guide frame 5 is arranged between the roller 3 and the guide roller 4. The guide frame 5 is "S" shaped, and the upper end of the guide frame 5 is located above the guide roller 4. The thickness of the lower end of the guide frame 5 gradually becomes thinner and is slidably fitted with the lower side of the roller 3; an air suction seat 6 is arranged above the roller 3, one end of the air suction seat 6 is fixedly connected to an air suction pipe 10, and both sides of the bottom end of the air suction seat 6 are fixedly connected to partitions 9. The guide frame 5 and the air suction seat 6 are both fixedly connected to the base 1, and a brush 11 is arranged on the top of the roller 3. The air entering the air suction seat 6 is filtered by the filtering mechanism 7, and the brush 11 is replaced by the replacement mechanism 8.

[0036] It also includes a front auxiliary blowing device 12 and a rear auxiliary blowing device 13, the front auxiliary blowing device 12 is located below the guide roller 4 on the front side of the drum 3, and the front auxiliary blowing device 12 can blow air toward the outer wall of the guide frame 5 on the front side, and the rear auxiliary blowing device 13 is located below the guide roller 4 on the rear side of the drum 3, and the rear auxiliary blowing device 13 can blow air toward the outer wall of the guide frame 5 on the rear side.

[0037] The filter mechanism 7 includes an air inlet 701, which is opened at the bottom end of the suction seat 6. A filter frame 702 is installed on the inner wall of the air inlet 701, and a filter net is installed on the filter frame 702. The interior of the suction seat 6 is symmetrically and slidably connected with a C-shaped block 703 extending to the inner cavity of the air inlet 701. A first spring 704 is connected between the C-shaped block 703 and the suction seat 6, and a slot 705 is opened at the top of the filter frame 702.

[0038] In this embodiment: in the initial state, one end of the paper is guided and moved by the guide roller 4 and the guide frame 5 arranged on the front side. When the paper moves to the front side of the drum 3, the front auxiliary blowing device 12 is started, and the front auxiliary blowing device 12 can blow toward the outer wall of the guide frame 5 located on the front side, so that the paper moves in contact with the outer wall of the guide frame 5 on the front side until it is adsorbed by the drum 3; because the drum 3 is in a rotating state, it can drive the paper to move smoothly to the rear side of the drum 3 and be scooped up by the lower end of the guide frame 5 on the rear side. At the same time, the rear auxiliary blowing device 13 is started, and the rear auxiliary blowing device 13 can blow toward the outer wall of the guide frame 5 on the rear side, so that the paper can continue to move in contact with the outer wall of the guide frame 5 on the rear side until the end of the paper passes through the guide frame 5 on the rear side and is guided to the guide roller 4 on the rear side, and then output outward by the guide roller 4 on the rear side. At this point, the paper feeding and automatic paper guiding operation is completed. After the automatic paper feeding and guiding operation is completed, the front auxiliary blowing device 12 and the rear auxiliary blowing device 13 can be turned off to reduce the transmission resistance of the drum 3.

[0039] No matter in the initial loading operation or in the later normal transmission operation, the suction pipe 10 sucks air through the suction seat 6, the paper is adsorbed on the roller 3 through the suction holes on the roller 3, the motor 2 drives the roller 3 to rotate, and the rotation of the roller 3 drives the paper to move.

[0040] When the drum 3 rotates, the brush 11 contacts the top of the drum 3, and the brush 11 brushes the surface of the drum 3 to prevent the suction holes on the drum 3 from being blocked. At the same time, the impurities brushed off move toward the suction seat 6 along with the air flow. When the air passes through the air inlet 701, the filter frame 702 filters the impurities in the air to prevent the impurities from entering the suction seat 6 and being sucked away by the suction pipe 10, so as to facilitate automatic brushing and cleaning of the surface of the drum 3 to prevent the suction holes from being blocked.

[0041] Please refer to Figures 1 to 6The filtering mechanism 7 also includes a replacement groove 706, which is opened at the top of the suction seat 6. The interior of the suction seat 6 is located at the bottom of the replacement groove 706 and is rotatably connected with a rotating plate 707. The rotating plate 707 is rotatably connected to the suction seat 6 through a connecting shaft 708. A torsion spring 709 is connected to the outer wall of the connecting shaft 708 between the rotating plate 707 and the suction seat 6. A baffle 710 is slidably connected to the top of the inner wall of the replacement groove 706. A plug rod 711 that penetrates the baffle 710 is slidably connected to the outer wall of the baffle 710. A cross plate 712 is fixedly connected to the outer wall of the plug rod 711. A second spring 713 is connected between the baffle 710 and the cross plate 712.

[0042] In this embodiment, when the filter frame 702 is replaced, the rod 711, the baffle 710 and the second spring 713 are removed, and the bottom end of the rod 711 is inserted into the slot 705 on the new filter frame 702, and then the new filter frame 702 is placed into the replacement slot 706. At the same time, the baffle 710 blocks the top of the replacement slot 706, and the rod 711 is pushed downward, and the new filter frame 702 contacts the rotating plate 707, driving the rotating plate 707 to rotate. The displacement of the rod 711 drives the new filter frame 702 to move into the suction seat 6, and then into the air inlet 701. When the new filter frame 702 is in contact with the C When the C-shaped block 703 contacts, it pushes the C-shaped block 703 to move, squeezing the first spring 704 until the C-shaped block 703 moves out of the air inlet 701. The old filter frame 702 has no support from the C-shaped block 703 and falls along the air inlet 701. The new filter frame 702 moves between the upper and lower ends of the C-shaped block 703. The C-shaped block 703 moves into the air inlet 701 under the elastic force of the first spring 704, and the new filter frame 702 is positioned. Then the insertion rod 711 is pulled upward out of the suction seat 6. At this time, the insertion rod 711 moves out of the slot 705, thereby completing the replacement operation of the filter frame 702.

[0043] Please refer to Figures 7 to 11The replacement mechanism 8 includes a mounting groove 801, which is provided on the outer wall of the base 1, and a fixing groove 802 is symmetrically provided on the inner wall of the mounting groove 801. The inner wall of the mounting groove 801 is slidably connected with a mounting seat 803, and the interior of the mounting seat 803 is slidably connected with a fixing block 804 extending from the mounting seat 803, and a third spring 805 is connected between the fixing block 804 and the mounting seat 803. The interior of the mounting seat 803 is located on the outer wall of the fixing block 804 and is rotatably connected with a first straight gear 806, and one end of the first straight gear 806 is fixedly connected with a rotating block 807, and the rotating block 807 is located on the outer wall of the mounting seat 803. The replacement mechanism 8 also includes a storage frame 808, and the storage frame 808 is fixedly connected to the outer wall of the mounting seat 803. The brush 11 A connecting block 809 is fixedly connected to the top, and a groove 810 is provided on the outer wall of the connecting block 809. A connecting seat 811 is fixedly connected to the bottom end of the storage frame 808. A connecting groove 812 is provided on the bottom end of the connecting seat 811. A rotatable positioning column 813 is slidably connected inside the connecting seat 811. One end of the positioning column 813 is provided with a first inclined surface and is located in the inner cavity of the connecting groove 812. The other end of the positioning column 813 is rotatably connected to a push plate 814. The push plate 814 is slidably connected to the inside of the connecting seat 811. A fourth spring 815 is connected between the push plate 814 and the connecting seat 811. A second spur gear 816 is fixedly connected to the outer wall of the positioning column 813. A displacement frame 817 is slidably connected to the outer wall of the second spur gear 816 inside the connecting seat 811. The displacement frame 817 extends out of the connecting seat 811, and a fifth spring 818 is connected between the displacement frame 817 and the connecting seat 811.

[0044] In this embodiment: the replaced filter rack 702 falls into the storage frame 808 for collection. When the filter rack 702 in the storage frame 808 is taken out and cleaned, the rotating block 807 is rotated. The rotating block 807 rotates to drive the first straight gear 806 to rotate. The first straight gear 806 rotates to drive the fixed block 804 to move, causing the third spring 805 to be squeezed. The fixed block 804 moves out of the fixed groove 802, canceling the fixation of the mounting seat 803, thereby taking the mounting seat 803 out of the mounting groove 801, and then taking the storage frame 808 out of the base 1, so as to facilitate the cleaning operation of the filter rack 702 collected in the storage frame 808.

[0045] When the storage frame 808 is located outside the base 1, the direction of the first inclined surface is toward the inner side of the connecting groove 812 (i.e., the direction is upward). At this time, the connecting block 809 can be directly moved out of the connecting groove 812 to disassemble, clean or replace the brush 11. When installing the brush 11, the displacement frame 817 is pushed to move into the connecting seat 811. The displacement of the displacement frame 817 drives the second spur gear 816 to rotate. The rotation of the second spur gear 816 drives the positioning column 813 to rotate, so that the direction of the first inclined surface is toward the outside of the connecting groove 812 (i.e., the direction is downward). At this time, the connecting block 809 can be inserted into the connecting groove. 812, until the positioning column 813 contacts the groove 810, the push plate 814 is displaced by the elastic force of the fourth spring 815, and the displacement of the push plate 814 drives the positioning column 813 to be displaced and inserted into the groove 810, so as to install and fix the brush 11; when the mounting seat 803 is installed into the mounting groove 801, the side wall of one end of the storage frame 808 contacts the base 1, and the base 1 can push the displacement frame 817 into the connecting seat 811, thereby fixing the connecting block 809 in the connecting groove 812, preventing the brush 11 from loosening during use, and facilitating the quick installation and disassembly of the brush 11.

[0046] Please refer to Figures 1 to 6 The inner wall of the air inlet 701 is in contact with the outer wall of the filter frame 702 , and the two ends of the C-shaped block 703 are respectively provided with second inclined surfaces in opposite directions.

[0047] In this embodiment: when the new filter frame 702 contacts the C-shaped block 703, the C-shaped block 703 is pushed to move, causing compression on the first spring 704 until the C-shaped block 703 moves out of the air inlet 701. The old filter frame 702 has no support from the C-shaped block 703 and falls along the air inlet 701. The new filter frame 702 moves to between the upper and lower ends of the C-shaped block 703. The C-shaped block 703 is moved into the air inlet 701 by the elastic force of the first spring 704, and the new filter frame 702 is positioned.

[0048] Please refer to Figures 1 to 6 The outer wall of the bottom end of the insertion rod 711 fits with the inner wall of the slot 705 , the outer wall of the filter frame 702 fits with the inner wall of the replacement slot 706 , and the outer wall of the bottom end of the baffle 710 fits with the inner wall of the replacement slot 706 .

[0049] In this embodiment: the bottom end of the insertion rod 711 is inserted into the slot 705 on the new filter rack 702, and then the new filter rack 702 is placed into the replacement slot 706. At the same time, the baffle 710 blocks the top of the replacement slot 706, and the insertion rod 711 is pushed downward, and the new filter rack 702 contacts the rotating plate 707, driving the rotating plate 707 to rotate. The displacement of the insertion rod 711 drives the new filter rack 702 to move into the suction seat 6, and then enters the air inlet 701.

[0050] Please refer to Figures 7 to 11 The inner wall of the mounting groove 801 fits with the outer wall of the mounting seat 803 , the outer wall of one end of the fixing block 804 fits with the inner wall of the fixing groove 802 , and the outer wall of the fixing block 804 is provided with a first tooth groove, which meshes with the first spur gear 806 .

[0051] In this embodiment: the rotating block 807 is rotated, and the rotating block 807 drives the first spur gear 806 to rotate, and the first spur gear 806 drives the fixed block 804 to move, causing the third spring 805 to be squeezed, and the fixed block 804 moves out of the fixed groove 802, canceling the fixation of the mounting seat 803, thereby removing the mounting seat 803 from the mounting groove 801.

[0052] Please refer to Figures 7 to 11 The inner wall of the connecting groove 812 fits with the outer wall of the connecting block 809 , the outer wall of the positioning column 813 matches with the inner wall of the groove 810 , and the outer wall of the displacement frame 817 is provided with a second tooth groove, which meshes with the second spur gear 816 .

[0053] In this embodiment: the displacement frame 817 is pushed to displace into the connecting seat 811, and the displacement of the displacement frame 817 drives the second spur gear 816 to rotate, and the rotation of the second spur gear 816 drives the positioning column 813 to rotate, so that the direction of the first inclined surface is toward the outside of the connecting groove 812. At this time, the connecting block 809 can be inserted into the connecting groove 812 until the positioning column 813 contacts the groove 810, and the push plate 814 is displaced by the elastic force of the fourth spring 815, and the displacement of the push plate 814 drives the positioning column 813 to displace and insert into the groove 810.

[0054] It should be pointed out that the thickness of the lower end of the guide frame 5 gradually becomes thinner and is slidably fitted with the lower side of the roller 3. This setting is intended to smoothly guide the paper from the front guide frame 5 to one side of the roller 3 for adsorption transmission, and then scoop up the paper through the lower end of the rear guide frame 5 to smoothly detach it from the roller 3 and move in line with the rear guide frame 5; the front and rear guide frames 5 are both split structures, and the thin-walled part at the lower end is made of self-lubricating rubber material, which can fit the roller 3 but will not increase the rotational resistance of the roller 3. This part is a replaceable wear material and can be replaced after a period of use. The lower end of the guide frame 5 can scrape off impurities electrostatically adsorbed on the outer wall of the drum, but some impurities enter the suction holes on the outer wall of the drum 3 under the scraping action of the lower end of the guide frame 5. The impurities entering the drum 3 will move toward the suction seat 6 under the action of suction until they are blocked at the suction hole position near the brush 11. At this time, the brush 11 can sweep and clean the suction holes at this position to prevent impurities from accumulating in the drum for a long time and causing blockage of the suction holes; and the impurities sucked out of the drum 3 can be further blocked by the filter frame 702 equipped with a filter screen to prevent them from entering the suction seat 6 and the suction pipe 10 and blocking the suction power system.

[0055] In addition, the front auxiliary blowing device 12 and the rear auxiliary blowing device 13 are each provided with more than two groups, which can perform blowing operations on the outer middle part and the outer lower end of the guide frame 5, so that the paper can move in accordance with the guide frame to avoid paper guiding deviation or failure.

[0056] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-blocking self-cleaning pneumatic paper feeding device, comprising a base (1), a motor (2) being mounted on the outer wall of the base (1), a roller (3) being mounted in the inner cavity of the base (1), an air suction hole being provided in the outer wall of the roller (3), the motor (2) being used to drive the roller (3) to rotate, guide rollers (4) being mounted on both sides of the inner cavity of the base (1), characterized in that: A guide frame (5) is provided between the roller (3) and the guide roller (4), and the guide frame (5) is in an "S" shape, with the upper end of the guide frame (5) located above the guide roller (4), and the lower end of the guide frame (5) gradually becoming thinner and being slidably fitted to the lower side of the roller (3); An air suction seat (6) is arranged above the drum (3), one end of the air suction seat (6) is fixedly connected to an air suction pipe (10), both sides of the bottom end of the air suction seat (6) are fixedly connected to partitions (9), the guide frame (5) and the air suction seat (6) are both fixedly connected to the base (1), a brush (11) is arranged at the top end of the drum (3), the air entering the air suction seat (6) is filtered by a filtering mechanism (7), and the brush (11) is replaced by a replacement mechanism (8); The filter mechanism (7) comprises an air inlet (701), the air inlet (701) being opened at the bottom end of the air suction seat (6), a filter frame (702) being installed on the inner wall of the air inlet (701), a filter screen being installed on the filter frame (702), a C-shaped block (703) extending to the inner cavity of the air inlet (701) being symmetrically slidably connected inside the air suction seat (6), a first spring (704) being connected between the C-shaped block (703) and the air suction seat (6), and a slot (705) being opened at the top end of the filter frame (702); The filtering mechanism (7) also includes a replacement groove (706), the replacement groove (706) is opened at the top end of the suction seat (6), the interior of the suction seat (6) is located at the bottom end of the replacement groove (706) and is rotatably connected to a rotating plate (707), the rotating plate (707) is rotatably connected to the suction seat (6) through a connecting shaft (708), a torsion spring (709) is connected to the outer wall of the rotating plate (707) and the suction seat (6) located at the connecting shaft (708), the top end of the inner wall of the replacement groove (706) is slidably connected to a baffle (710), the outer wall of the baffle (710) is slidably connected to an insertion rod (711) that penetrates the baffle (710), the outer wall of the insertion rod (711) is fixedly connected to a horizontal plate (712), and a second spring (713) is connected between the baffle (710) and the horizontal plate (712).

2. The anti-blocking self-cleaning pneumatic paper feeding device according to claim 1, characterized in that: It also includes a front auxiliary blowing device (12) and a rear auxiliary blowing device (13), wherein the front auxiliary blowing device (12) is located below the guide roller (4) on the front side of the drum (3), and the front auxiliary blowing device (12) can blow air toward the outer wall of the guide frame (5) located on the front side, and the rear auxiliary blowing device (13) is located below the guide roller (4) on the rear side of the drum (3), and the rear auxiliary blowing device (13) can blow air toward the outer wall of the guide frame (5) located on the rear side.

3. The anti-blocking self-cleaning pneumatic paper feeding device according to claim 1, characterized in that: The replacement mechanism (8) comprises a mounting groove (801), wherein the mounting groove (801) is provided on the outer wall of the base (1), and the inner wall of the mounting groove (801) is symmetrically provided with a fixing groove (802), the inner wall of the mounting groove (801) is slidably connected to a mounting seat (803), the interior of the mounting seat (803) is slidably connected to a fixing block (804) extending from the mounting seat (803), a third spring (805) is connected between the fixing block (804) and the mounting seat (803), the interior of the mounting seat (803) is rotatably connected to a first spur gear (806) located on the outer wall of the fixing block (804), one end of the first spur gear (806) is fixedly connected to a rotating block (807), and the rotating block (807) is located on the outer wall of the mounting seat (803).

4. The anti-blocking self-cleaning pneumatic paper feeding device according to claim 3, characterized in that: The replacement mechanism (8) further comprises a storage frame (808), wherein the storage frame (808) is fixedly connected to the outer wall of the mounting seat (803); the top end of the brush (11) is fixedly connected to a connecting block (809), the outer wall of the connecting block (809) is provided with a groove (810); the bottom end of the storage frame (808) is fixedly connected to a connecting seat (811), the bottom end of the connecting seat (811) is provided with a connecting groove (812); the interior of the connecting seat (811) is slidably connected to a rotatable positioning column (813), one end of the positioning column (813) is provided with a first inclined surface and is located in the inner cavity of the connecting groove (812); The other end of the positioning column (813) is rotatably connected to a push plate (814), the push plate (814) is slidably connected to the inside of the connecting seat (811), a fourth spring (815) is connected between the push plate (814) and the connecting seat (811), the outer wall of the positioning column (813) is fixedly connected to a second spur gear (816), the inside of the connecting seat (811) is slidably connected to a displacement frame (817) located on the outer wall of the second spur gear (816), the displacement frame (817) extends out of the connecting seat (811), and a fifth spring (818) is connected between the displacement frame (817) and the connecting seat (811).

5. The anti-blocking self-cleaning pneumatic paper feeding device according to claim 1, characterized in that: The inner wall of the air inlet (701) is in contact with the outer wall of the filter frame (702), and second inclined surfaces in opposite directions are respectively provided at both ends of the C-shaped block (703).

6. The anti-blocking self-cleaning pneumatic paper feeding device according to claim 1, characterized in that: The outer wall of the bottom end of the insertion rod (711) fits with the inner wall of the slot (705); the outer wall of the filter frame (702) fits with the inner wall of the replacement slot (706); and the outer wall of the bottom end of the baffle (710) fits with the inner wall of the replacement slot (706).

7. The anti-blocking self-cleaning pneumatic paper feeding device according to claim 4, characterized in that: The inner wall of the mounting groove (801) fits with the outer wall of the mounting seat (803), the outer wall of one end of the fixing block (804) fits with the inner wall of the fixing groove (802), and the outer wall of the fixing block (804) is provided with a first tooth groove, which meshes with the first spur gear (806).

8. The anti-blocking self-cleaning pneumatic paper feeding device according to claim 4, characterized in that: The inner wall of the connecting groove (812) fits with the outer wall of the connecting block (809), and the outer wall of the positioning column (813) matches with the inner wall of the groove (810).

9. The anti-blocking self-cleaning pneumatic paper feeding device according to claim 4, characterized in that: The outer wall of the displacement frame (817) is provided with a second tooth groove, and the second tooth groove is meshed with the second spur gear (816).

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