CN217048007U

CN217048007U - Paper jamming prevention mechanism for printer

Info

Publication number: CN217048007U
Application number: CN202220551615.3U
Authority: CN
Inventors: 张亨峰; 于心茹; 郭晓
Original assignee: Anhui Yihao Advertising Media Co ltd
Current assignee: Anhui Yihao Advertising Media Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-26
Anticipated expiration: 2032-03-15

Abstract

The utility model discloses an anti-jamming mechanism for a printer, which relates to the technical field of printers, and comprises a bottom plate, wherein the top end of the bottom plate is provided with a hair removing component, two sides of the bottom plate are both fixedly provided with baffles, a connecting lead screw is rotatably connected between the two baffles through a bearing, the surface of the connecting lead screw is connected with a moving pipe through a lead screw nut and a screw thread, the surface of the moving pipe is fixedly provided with a guide plate, and an auxiliary component is arranged between the two baffles; the beneficial effects of the utility model are that: through the cooperation of connecting the lead screw, removing pipe, deflector, second connecting rod, carousel, bottom and two baffles, avoid causing the card paper trouble because of unilateral direction, through the defeathering subassembly that sets up, can detach the paper hair at paper edge, through the cooperation of auxiliary assembly and clearance subassembly, can flatten by the paper of suction, can detach the paper hair and the dust that fall to the paper top.

Description

Paper jamming prevention mechanism for printer

Technical Field

The utility model relates to an anti-sticking paper mechanism, in particular to anti-sticking paper mechanism for printer belongs to printer technical field.

Background

A printer is one of the output devices of a computer for printing the results of a computer process on an associated medium. The indexes for measuring the quality of the printer comprise three items, namely printing resolution, printing speed and noise. There are many types of printers, and the types of printers are classified into impact printers and non-impact printers according to whether or not a printing element strikes a sheet.

In order to avoid paper jam of the printer, two sliding rails are used for guiding two sides of a stack of paper, but the paper jam preventing mechanism of the existing printer cannot remove paper burrs at the edges of the paper, and meanwhile, the fixed sliding rails can only be used for paper with a specific size, and can only be used for guiding paper with other sizes in a unilateral mode, so that the paper jam preventing effect is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a jam paper mechanism of printer to solve the current printer that proposes in the above-mentioned background art's the not good problem of jam paper effect of jam paper mechanism.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti-sticking paper mechanism for printer, includes the bottom plate, the top of bottom plate is equipped with the hair removal subassembly, the equal fixed baffle that is equipped with in both sides of bottom plate, two rotate through the bearing between the baffle and be connected with the connecting screw rod, the surface of connecting screw rod has the removal pipe through screw-nut threaded connection, the fixed surface that removes the pipe is equipped with the deflector, two be equipped with auxiliary assembly, one of them between the baffle one side of baffle is fixed first backup pad and the flush mounting plate of switch of being equipped with respectively, one of them one side of baffle is equipped with the clearance subassembly.

Preferably, the hair removing assembly comprises two second supporting plates, the two second supporting plates are respectively and fixedly arranged on the front surfaces of the two baffles, driving motors are fixedly arranged at the top ends of the two second supporting plates, transmission shafts of the two driving motors are fixedly provided with transmission rods, hair removing rollers are fixedly arranged on the surfaces of the two transmission rods, one end of one transmission rod is rotatably connected with a sliding block through a bearing, and one end of one transmission rod is rotatably connected with a supporting block through a bearing.

Preferably, the top end of the sliding block is fixedly connected with the bottom end of the guide plate, the back surface of the supporting block is fixedly connected with the front surface of one of the baffles, and the other ends of the two transmission rods are respectively and rotatably connected with the bottom ends of the two second supporting plates through bearings.

Preferably, the auxiliary assembly comprises a wool absorption cylinder, the wool absorption cylinder is rotatably arranged between the two baffles through a bearing, a wool absorption hopper is fixedly arranged on the surface of the wool absorption cylinder, two connecting arms are fixedly arranged on the front surface of the wool absorption hopper, a first connecting rod is rotatably connected between the two connecting arms through a bearing, and a flattening roller is fixedly arranged on the surface of the first connecting rod.

Preferably, the cleaning assembly comprises an electric air pump, the electric air pump is fixedly arranged at the top end of the first support plate, an air inlet pipe is fixedly arranged at the air exhaust end of the electric air pump, the air inlet pipe is a hose, a first connecting pipe is fixedly arranged at one end of the air inlet pipe, a cleaning pipe is in threaded connection with one end of the first connecting pipe, a dustproof net is fixedly arranged inside the cleaning pipe, a second connecting pipe is in threaded connection with one end of the cleaning pipe, a connecting ring is fixedly arranged on the surface of the second connecting pipe, a connecting plate is fixedly arranged on the surface of the second connecting pipe, one side of the connecting plate is fixedly connected with one side of one of the baffles, a third connecting pipe is fixedly arranged at one end of the second connecting pipe, one end of the third connecting pipe is fixedly connected with one end of the hair suction barrel, and the inside of the third connecting pipe is communicated with the hair suction barrel, the surface of the third connecting pipe is fixedly connected with the inner wall of one baffle.

Preferably, the top end of the bottom plate is provided with a sliding chute sliding with the sliding block, and the top end of the bottom plate is connected with the bottom end of the guide plate in a sliding manner.

Preferably, two the fixed slide bar that is equipped with between the baffle, the sliding surface of slide bar is connected with the stand pipe, the surface of stand pipe and the inner wall fixed connection of deflector, another one side of baffle rotates through the bearing and is connected with the second connecting rod, the fixed carousel that is equipped with of one end of second connecting rod, the other end of second connecting rod and the one end fixed connection who is connected the lead screw.

Preferably, the surface of the switch panel is respectively provided with a driving motor switch and an electric air pump switch, and the two driving motors and the two electric air pumps are respectively electrically connected with an external power supply through the driving motor switch and the electric air pump switch.

Compared with the prior art, the utility model provides a pair of a prevent card paper mechanism for printer has following beneficial effect:

1. through the matching of the connecting screw rod, the moving pipe, the guide plate, the second connecting rod, the rotary table, the bottom and the two baffles, paper with different sizes can be effectively guided, the paper jam fault caused by unilateral guidance is avoided, a stack of paper is placed at the top end of the bottom plate, the side sides of the stack of paper are attached to one side of one baffle, then the rotary table is rotated, the rotary table drives the second connecting rod to rotate, the second connecting rod drives the connecting screw rod to rotate, the connecting screw rod drives the moving pipe to move, the moving pipe drives the guide plate to slide along the top end of the bottom plate until one side of the guide plate is attached to the other side of the stack of paper, and bilateral guidance is realized;

2. through the arranged hair removing assembly, paper hair at the edge of paper can be removed, a stack of paper is slid in, one side of the stack of paper is attached to one side of the guide plate, the other side of the stack of paper is attached to one side of one of the baffles, the guide plate can drive the sliding block to slide when moving, the moving sliding block can drive one side of paper on the surface of one hair removing roller to be attached to the other side of the stack of paper, then the hair removing roller is slid out, the driving motor is started through the switch of the driving motor, the driving motor drives the transmission rod to rotate, the transmission rod drives the hair removing roller to rotate, the stack of paper is slid in along one side of the guide plate, the edge of the paper is rubbed with the surface of the hair removing roller, the paper hair at the edge of the paper is removed, and the problem that the paper is broken due to paper jam is avoided, the paper hair is thrown out by the hair removing roller;

3. the sucked paper can be flattened through the matching of the auxiliary assembly and the cleaning assembly, the printing effect is improved, paper hair and dust falling to the top end of the paper can be removed, the anti-jamming effect and the printing effect are ensured, the paper hair and the dust can be conveniently cleaned, the practicability is enhanced, the wool sucking barrel is rotated anticlockwise, the wool sucking barrel drives the wool sucking bucket to rotate, the wool sucking bucket drives the connecting arm to rotate, the connecting arm drives the first connecting rod to rotate, the first connecting rod drives the flattening roller, then the wool sucking barrel is loosened, the flattening roller rotates reversely, finally the flattening roller is abutted by the paper, the wool sucking bucket aims at the top end of the paper, the electric air pump can generate air flow, the air flow enters the interior of the wool sucking barrel from the wool sucking bucket, then enters the interior of the third connecting pipe, then enters the interior of the second connecting pipe, the air flow can pass through a dustproof net in the cleaning pipe, and the air flow can clamp the paper hair and the dust on the top end of the paper, wrap up in the paper hair and the dust of holding by the wall and all can be intercepted by the dust screen, when needs clearance paper hair, rotate the clearance pipe, the inner wall of clearance pipe is equipped with the internal thread, and the thread groove with internal thread threaded connection is all seted up on the surface of first connecting pipe and second connecting pipe, then the surface removal along first connecting pipe is managed in the clearance, until clearance pipe and second connecting pipe separation, the intake pipe is the hose, so can remove first connecting pipe, after that the antiport clearance pipe, thereby take off the clearance pipe, then wash the inside dust screen of clearance pipe with water.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention;

FIG. 3 is a schematic view of the back structure of the present invention;

fig. 4 is a schematic side sectional view of the present invention.

In the figure: 1. a base plate; 2. a baffle plate; 3. connecting a screw rod; 4. moving the tube; 5. a guide plate; 6. a first support plate; 7. a hair removal assembly; 701. a second support plate; 702. a drive motor; 703. a transmission rod; 704. a deburring roller; 705. a slider; 706. a support block; 8. an auxiliary component; 801. a wool sucking cylinder; 802. a hair suction hopper; 803. a connecting arm; 804. a first connecting rod; 805. flattening rollers; 9. cleaning the assembly; 901. an electric air pump; 902. an air inlet pipe; 903. a first connecting pipe; 904. cleaning the pipe; 905. a second connecting pipe; 906. a connecting ring; 907. a connecting plate; 908. a third connecting pipe; 10. a chute; 11. a slide bar; 12. a guide tube; 13. a second connecting rod; 14. a turntable; 15. and a switch panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-4, the utility model provides an anti-jamming mechanism for a printer, including a bottom plate 1, the top of bottom plate 1 is equipped with hair removal assembly 7, both sides of bottom plate 1 are all fixed and are equipped with baffle 2, connect with connecting screw rod 3 through the bearing rotation between two baffle 2, the surface of connecting screw rod 3 is connected with moving pipe 4 through the screw-nut screw thread, moving pipe 4 surface is fixed and is equipped with deflector 5, be equipped with auxiliary assembly 8 between two baffle 2, one side of one of them baffle 2 is fixed respectively and is equipped with first backup pad 6 and flush mounting plate 15 of switch, one side of one of them baffle 2 is equipped with clearance subassembly 9;

the top end of the bottom plate 1 is provided with a sliding chute 10 which slides with the sliding block 705, and the top end of the bottom plate 1 is connected with the bottom end of the guide plate 5 in a sliding manner;

a sliding rod 11 is fixedly arranged between the two baffles 2, the surface of the sliding rod 11 is connected with a guide pipe 12 in a sliding manner, the surface of the guide pipe 12 is fixedly connected with the inner wall of the guide plate 5, one side of the other baffle 2 is rotatably connected with a second connecting rod 13 through a bearing, one end of the second connecting rod 13 is fixedly provided with a turntable 14, and the other end of the second connecting rod 13 is fixedly connected with one end of the connecting screw rod 3.

Example 2:

the hair removing assembly 7 comprises two second supporting plates 701, the two second supporting plates 701 are respectively and fixedly arranged on the front surfaces of the two baffles 2, driving motors 702 are fixedly arranged at the top ends of the two second supporting plates 701, transmission rods 703 are fixedly arranged on transmission shafts of the two driving motors 702, hair removing rollers 704 are fixedly arranged on the surfaces of the two transmission rods 703, one end of one transmission rod 703 is rotatably connected with a sliding block 705 through a bearing, and one end of one transmission rod 703 is rotatably connected with a supporting block 706 through a bearing;

the top end of the sliding block 705 is fixedly connected with the bottom end of the guide plate 5, the back surface of the supporting block 706 is fixedly connected with the front surface of one baffle plate 2, and the other ends of the two transmission rods 703 are respectively and rotatably connected with the bottom ends of the two second supporting plates 701 through bearings;

the surface of the switch panel 15 is provided with a driving motor switch, and the two driving motors 702 are electrically connected with an external power supply through the driving motor switch;

specifically, as shown in fig. 1, 3, and 4, first, the driving motor 702 is started by the driving motor switch, the driving motor 702 drives the driving rod 703 to rotate, the driving rod 703 drives the deburring roller 704 to rotate, and the edge of the paper rubs against the surface of the deburring roller 704 to remove paper burrs on the edge of the paper.

Example 3:

the auxiliary assembly 8 comprises a wool sucking cylinder 801, the wool sucking cylinder 801 is rotatably arranged between the two baffle plates 2 through a bearing, a wool sucking bucket 802 is fixedly arranged on the surface of the wool sucking cylinder 801, two connecting arms 803 are fixedly arranged on the front surface of the wool sucking bucket 802, a first connecting rod 804 is rotatably connected between the two connecting arms 803 through a bearing, and a flattening roller 805 is fixedly arranged on the surface of the first connecting rod 804;

specifically, as shown in fig. 1, 2, 3, and 4, a stack of paper is slid into the top end of the bottom plate 1, so that the surface of the leveling roller 805 is attached to the top end of the stack of paper, when the topmost paper is drawn away by the printer, the leveling roller 805 rotates, the leveling roller 805 flattens the paper by its own weight to improve the printing effect, when the thickness of the paper is reduced, the leveling roller 805 loses the support of the paper and moves downward, and then drives the first connecting rod 804 to move, the first connecting rod 804 drives the connecting arm to move, the connecting arm 803 drives the bristle suction hopper 802 to move, the bristle suction hopper 802 drives the bristle suction cylinder 801 to rotate, so that the leveling roller 805 rotates around the center of the bristle suction cylinder 801 until the leveling roller 805 contacts with the remaining paper, when the paper is completely drawn away, a gap still exists between the leveling roller 805 and the bottom plate 1, and the thickness of the gap is smaller than the thickness of one paper, therefore, the flattening roller 805 can flatten all the drawn paper, and meanwhile, the flattening roller 805 is prevented from being contaminated by dust accumulated at the top end of the bottom plate 1 due to idle printing, and the printing surface of the paper is prevented from being contaminated.

Example 4:

the cleaning assembly 9 comprises an electric air pump 901, the electric air pump 901 is fixedly arranged at the top end of the first support plate 6, an air inlet pipe 902 is fixedly arranged at the air outlet end of the electric air pump 901, the air inlet pipe 902 is a hose, a first connecting pipe 903 is fixedly arranged at one end of the air inlet pipe 902, a cleaning pipe 904 is connected with one end of the first connecting pipe 903 in a threaded manner, a dustproof net is fixedly arranged inside the cleaning pipe 904, a second connecting pipe 905 is connected with one end of the cleaning pipe 904 in a threaded manner, a connecting ring 906 is fixedly arranged on the surface of the second connecting pipe 905, a connecting plate 907 is fixedly arranged on the surface of the second connecting pipe 905, one side of the connecting plate 907 is fixedly connected with one side of one baffle 2, a third connecting pipe 908 is fixedly arranged at one end of the second connecting pipe 905, one end of the third connecting pipe 908 is fixedly connected with one end of the hair sucking barrel 801, the inside of the third connecting pipe 908 is communicated with the inside of the hair sucking barrel 801, and the surface of the third connecting pipe 908 is fixedly connected with the inner wall of one baffle 2;

an electric air pump switch is arranged on the surface of the switch panel 15, and the electric air pump 901 is electrically connected with an external power supply through the electric air pump switch;

specifically, as shown in fig. 1 and 3, when the electric air pump 901 is started by an electric air pump switch, the electric air pump 901 generates an air flow, the air flow enters the inside of the third connecting pipe 908 from one end of the third connecting pipe 908 and then enters the inside of the second connecting pipe 905, the air flow passes through the dust screen inside the cleaning pipe 904, the paper dust and dust entrained by the air flow are intercepted by the dust screen, the air flow then enters the inside of the first connecting pipe 903 and enters the inside of the air inlet pipe 902 through the first connecting pipe 903, then enters the inside of the electric air pump 901 through the air inlet pipe 902 and is separated from the electric air pump 901 from the air outlet end of the electric air pump 901, when the paper dust needs to be cleaned, the cleaning pipe 904 is rotated, the inner wall of the cleaning pipe 904 is provided with an internal thread, and the surface of the first connecting pipe 903 and the surface of the second connecting pipe 905 are both provided with a thread groove connected with the internal thread, then, the cleaning pipe 904 is moved along the surface of the first connection pipe 903 until the cleaning pipe 904 is separated from the second connection pipe 905, and the air inlet pipe 902 is a hose so that the first connection pipe 903 can be moved, and then the cleaning pipe 904 is rotated in the reverse direction so that the cleaning pipe 904 is removed, and then the dust-proof net inside the cleaning pipe 904 is washed with water to remove paper lint.

The working principle is as follows: when the paper jamming preventing mechanism is used, firstly, a stack of paper is placed at the top end of a bottom plate 1, the side of the stack of paper is attached to one side of one baffle plate 2, then a rotary plate 14 is rotated, the rotary plate 14 drives a second connecting rod 13 to rotate, the second connecting rod 13 drives a connecting screw rod 3 to rotate, the connecting screw rod 3 drives a moving pipe 4 to move, the moving pipe 4 drives a guide plate 5 to slide along the top end of the bottom plate 1 until one side of the guide plate 5 is attached to the other side of the stack of paper, the guide plate 5 drives a sliding block 705 to slide along a sliding groove 10, then the stack of paper slides out, a driving motor 702 is started through a driving motor switch, the driving motor 702 drives a transmission rod to rotate, the transmission rod 703 drives a hair removing roller 704 to rotate, then the stack of paper slides in along one side of the guide plate 5, the edge of the paper rubs against the surface of the hair removing roller 704, removing paper fluff at the edge of paper, avoiding paper jam fault caused by the paper fluff, throwing out the paper fluff by the fluff removing roller 704, allowing part of the paper fluff to fall to the top end of the paper, rotating the fluff absorbing cylinder 801 anticlockwise, driving the fluff absorbing bucket 802 to rotate, driving the connecting arm 803 to rotate, driving the first connecting arm 804 to rotate, driving the flattening roller 805 by the first connecting arm 804, loosening the fluff absorbing cylinder 801, reversely rotating the flattening roller 805, and finally pressing the flattening roller 805 against the top end of the paper, at this time, the fluff absorbing bucket 802 aims at the top end of the paper, starting the electric air suction pump 901 through an electric air suction pump switch, generating air flow, the air flow enters the interior of the fluff absorbing cylinder 801 from the fluff absorbing cylinder 802, then enters the interior of the third connecting pipe 908, then enters the interior of the second connecting pipe 905, the air flow passes through the dust screen in the cleaning pipe 904, and the air flow wraps the paper fluff and dust at the top end of the paper, the wrapped paper hair and dust are intercepted by the dust screen, the air flow enters the inside of the first connecting pipe 903 and enters the inside of the air inlet pipe 902 through the first connecting pipe 903, then enters the inside of the electric air suction pump 901 through the air inlet pipe 902 and is separated from the air outlet end of the electric air suction pump 901, when the paper hair needs to be cleaned, the cleaning pipe 904 is rotated, the inner wall of the cleaning pipe 904 is provided with internal threads, the surface of the first connecting pipe 903 and the surface of the second connecting pipe 905 are both provided with thread grooves in threaded connection with the internal threads, so that the cleaning pipe 904 moves along the surface of the first connecting pipe 903 until the cleaning pipe 904 is separated from the second connecting pipe 905, the air inlet pipe 902 is a hose, so that the first connecting pipe 903 can be moved, then the cleaning pipe 904 is rotated reversely, so that the cleaning pipe 904 is removed, then the dust screen inside the cleaning pipe 904 is washed by water, the paper hair is removed, is very convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti-sticking paper mechanism for printer, includes bottom plate (1), its characterized in that, the top of bottom plate (1) is equipped with defeathering subassembly (7), the both sides of bottom plate (1) are all fixed and are equipped with baffle (2), two be connected with connecting screw rod (3) through the bearing rotation between baffle (2), the surface of connecting screw rod (3) has removal pipe (4) through screw-nut threaded connection, the fixed surface that removes pipe (4) is equipped with deflector (5), two be equipped with auxiliary assembly (8) between baffle (2), one of them one side of baffle (2) is fixed respectively and is equipped with first backup pad (6) and flush mounting plate of switch (15), one of them one side of baffle (2) is equipped with clearance subassembly (9).

2. The anti-jam mechanism for a printer as in claim 1, wherein: the hair removing assembly (7) comprises two second supporting plates (701), the two second supporting plates (701) are respectively and fixedly arranged on the front faces of the two baffles (2), driving motors (702) are fixedly arranged at the top ends of the two second supporting plates (701), transmission shafts of the driving motors (702) are respectively and fixedly provided with transmission rods (703), hair removing rollers (704) are respectively and fixedly arranged on the surfaces of the two transmission rods (703), one end of each transmission rod (703) is rotatably connected with a sliding block (705) through a bearing, and one end of each transmission rod (703) is rotatably connected with a supporting block (706) through a bearing.

3. The paper jam prevention mechanism for a printer of claim 2, wherein: the top end of the sliding block (705) is fixedly connected with the bottom end of the guide plate (5), the back surface of the supporting block (706) is fixedly connected with the front surface of one baffle (2), and the other ends of the two transmission rods (703) are respectively and rotatably connected with the bottom ends of the two second supporting plates (701) through bearings.

4. The paper jam prevention mechanism for a printer as claimed in claim 2, wherein: the auxiliary assembly (8) comprises a wool absorption cylinder (801), the wool absorption cylinder (801) is rotatably arranged between two baffles (2) through a bearing, a wool absorption hopper (802) is fixedly arranged on the surface of the wool absorption cylinder (801), two connecting arms (803) are fixedly arranged on the front surface of the wool absorption hopper (802), a first connecting rod (804) is rotatably connected between the connecting arms (803) through the bearing, and a flattening roller (805) is fixedly arranged on the surface of the first connecting rod (804).

5. The paper jam prevention mechanism for a printer of claim 4, wherein: the cleaning assembly (9) comprises an electric air pump (901), the electric air pump (901) is fixedly arranged at the top end of a first supporting plate (6), an air inlet pipe (902) is fixedly arranged at the air outlet end of the electric air pump (901), the air inlet pipe (902) is a hose, a first connecting pipe (903) is fixedly arranged at one end of the air inlet pipe (902), a cleaning pipe (904) is connected to one end of the first connecting pipe (903) in a threaded manner, a dustproof net is fixedly arranged inside the cleaning pipe (904), a second connecting pipe (905) is connected to one end of the cleaning pipe (904) in a threaded manner, a connecting ring (906) is fixedly arranged on the surface of the second connecting pipe (905), a connecting plate (907) is fixedly arranged on the surface of the second connecting pipe (905), one side of the connecting plate (907) is fixedly connected with one side of one of the baffles (2), and a third connecting pipe (908) is fixedly arranged at one end of the second connecting pipe (905), one end of the third connecting pipe (908) is fixedly connected with one end of the wool sucker (801), the inside of the third connecting pipe (908) is communicated with the inside of the wool sucker (801), and the surface of the third connecting pipe (908) is fixedly connected with the inner wall of one baffle (2).

6. The paper jam prevention mechanism for a printer of claim 3, wherein: the top end of the bottom plate (1) is provided with a sliding groove (10) which slides with the sliding block (705), and the top end of the bottom plate (1) is in sliding connection with the bottom end of the guide plate (5).

7. The anti-jam mechanism for a printer as in claim 1, wherein: two fixed slide bar (11) that are equipped with between baffle (2), the sliding surface of slide bar (11) is connected with stand pipe (12), the surface of stand pipe (12) and the inner wall fixed connection of deflector (5), another one side of baffle (2) is rotated through the bearing and is connected with second connecting rod (13), the fixed carousel (14) that are equipped with of one end of second connecting rod (13), the other end of second connecting rod (13) and the one end fixed connection of connecting lead screw (3).

8. The paper jam prevention mechanism for a printer as claimed in claim 5, wherein: the surface of the switch panel (15) is respectively provided with a driving motor switch and an electric air pump switch, and the two driving motors (702) and the electric air pump (901) are respectively electrically connected with an external power supply through the driving motor switch and the electric air pump switch.