CN110316603B

CN110316603B - Dental occlusion paper supply machine

Info

Publication number: CN110316603B
Application number: CN201910681832.7A
Authority: CN
Inventors: 王新娟; 李纪远
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-11-10
Anticipated expiration: 2039-07-26
Also published as: CN110316603A; CN111606118A; CN111606118B

Abstract

The invention relates to the field of auxiliary medical equipment for stomatology, in particular to a dental occlusion paper supply machine. The paper cutting device comprises a rectangular box body, wherein a winding wheel for winding straight-strip-shaped occluding paper and a roller set for conveying the occluding paper towards the outside of the box body through a paper outlet formed in the side wall of the box body are arranged in the inner cavity of the box body in a rotating mode, a sliding cover capable of plugging the paper outlet and cutting off the occluding paper is arranged on the side wall of the box body in a sliding mode corresponding to the position of the paper outlet, and a control mechanism for driving the roller set to rotate and controlling the sliding cover to slide is arranged on the side wall of the box body corresponding to the end portion. The invention not only can be used for a doctor to cut the occluding paper with proper length according to the actual use requirement to avoid waste, but also can avoid cross infection because the doctor does not directly contact with the rest occluding paper in the taking process of the occluding paper.

Description

Dental occlusion paper supply machine

Technical Field

The invention relates to the field of auxiliary medical equipment for stomatology, in particular to a dental occlusion paper supply machine.

Background

The occlusion paper is special color paper used by dentists in dental filling patients for adjusting whether occlusion is right or not by occluding left and right and up and down, or a tool commonly used for marking occlusion contact points in blending work, and the color is blue or red. In the use process, the doctor sends the occlusion paper to the tooth filling part in the oral cavity of the patient through the forceps, and colors the occlusion surface of the repaired tooth after the occlusion paper is occluded by the patient, so that the doctor can judge which parts are not easy to occlude and need to polish.

The existing occlusion paper is generally in a straight strip shape with uniform specification, the end parts of a plurality of occlusion papers are bonded and stored in a packaging box, and the problems in the following two aspects mainly exist in the using process:

on the one hand, the waste of the bite paper is serious. Because the positions and the number of the dental fillings of each patient are different, and the lengths of the dental occlusal surfaces needing coloring are not different as much, only part of the coloring of the teeth by the occlusal paper with the uniform length specification can reflect useful occlusion information for doctors to refer to, and the doctors are inconvenient to cut a single occlusal paper according to the actual required length, thereby causing waste to a certain degree. In one tooth repairing and shaping process, dozens to dozens of unequal occlusal papers are needed, which further aggravates the waste of the occlusal papers.

On the other hand, the packaging form of the existing bite paper is easy to cause infection. This is because in dental restoration, when the bite paper is needed, the doctor is required to take out the bite paper from the package and then to put the single bite paper into the patient through the forceps. In the process, the disposable gloves carried by the doctor can be infected with germs in the oral cavity of the patient and transferred to unused occluding paper in the packaging box, so that the whole box of occluding paper becomes a pollution source and produces cross infection on another patient.

Disclosure of Invention

The invention aims to provide a dental occlusion paper supply machine which not only can be used for a doctor to cut occlusion paper with a proper length according to actual use requirements to avoid waste, but also can avoid cross infection because the doctor does not directly contact with the rest occlusion paper in the occlusion paper taking process.

In order to solve the technical problems, the invention adopts the technical scheme that: a dental occlusion paper supply machine comprises a rectangular box body, wherein a winding wheel for winding straight-strip occlusion paper and a roller set for conveying the occlusion paper towards the outside of the box body through a paper outlet formed in the side wall of the box body are rotatably arranged in an inner cavity of the box body, a sliding cover capable of plugging the paper outlet and cutting off the occlusion paper is slidably arranged at a position on the side wall of the box body corresponding to the paper outlet, and a control mechanism for driving the roller set to rotate and the sliding cover to slide is arranged at a position on the side wall of the box body corresponding to the end part of a roller shaft in the roller set;

the roller set comprises a driven roller and a driving roller, the edges of the driven roller and the driving roller are in contact with each other to form a clamping conveying part for clamping occlusion paper, the clamping conveying part can rotate along with the driven roller and the driving roller in the opposite direction so as to supply the occlusion paper to the outside of the box body, and a conical friction shaft which can be in clutch connection with the control mechanism is arranged at the end part of a roller shaft of the driving roller;

the end part of the sliding cover is provided with a cutting knife for cutting off the occluded paper at the paper outlet, and one side of the sliding cover facing the box body is fixedly provided with a rack in transmission connection with the control mechanism;

the control mechanism comprises a hand wheel rotationally arranged on the outer side of the side wall of the box body and a clutch gear rotationally arranged on the inner side of the side wall of the box body, a wheel shaft is fixedly arranged at the central position of the hand wheel, one end, opposite to the hand wheel, of the wheel shaft is arranged in the box body in a penetrating manner through a shaft hole which is arranged on the side wall of the box body and coaxially corresponds to the tapered friction shaft, the wheel shaft can slide along the axial direction of the shaft hole, an inner tapered friction sleeve which can be jointed or separated with the tapered friction shaft along with the axial sliding of the wheel shaft is arranged at one end, positioned in the box body, of the wheel shaft, a driving gear is coaxially fixed on the wheel shaft, the driving gear is only meshed with the clutch gear in a jointing state of the tapered friction shaft and the inner tapered friction sleeve, part of the tooth edge of the clutch gear is meshed with a rack through a notch arranged on the side wall of the box, the tooth shaft of the clutch gear is provided with a reset torsion spring, so that after the driving gear and the clutch gear are separated, the elastic force of the reset torsion spring drives the sliding cover to block the paper outlet and the cutting knife cuts off the occluded paper.

Preferably, the roll shafts of the driving roll and the driven roll, which are opposite to one side of the hand wheel, are in transmission connection through a linkage gear set, the linkage gear set is positioned outside the box body, and a protective cover which covers the linkage gear set is fixedly arranged on the box body.

Preferably, the rotation centers of the roller group and the winding wheel are distributed along the horizontal direction, and the driven roller is positioned right above the driving roller.

Preferably, the rotation center of the winding wheel is flush with the clamping conveying part of the roller group, and a guide roller for the meshing paper on the winding wheel to horizontally enter the clamping conveying part is rotatably arranged at a position between the winding wheel and the roller group in the box body.

Preferably, the roller edges of the driving roller and the driven roller are both made of silica gel materials.

Preferably, the sliding cover is slidably distributed on the side wall of the box body along the vertical direction, guide rails are respectively arranged on the two sides of the paper outlet on the side wall of the box body, and sliding chutes in sliding fit with the guide rails are correspondingly arranged on the sliding cover.

Preferably, the cutting knife is fixedly arranged at the lower end of the sliding cover, and the blade parts of the cutting knife are distributed in an inclined manner on the horizontal plane.

Preferably, a return spring is sleeved on the axle between the driving gear and the side wall of the box body, and the return spring is used for driving the axle to slide towards the direction opposite to the conical friction shaft so as to separate the inner conical friction sleeve from the conical friction shaft and separate the driving gear from the clutch gear.

Preferably, a first bearing for the roll shaft to be in running fit, a second bearing for the gear shaft to be in running fit and a third bearing for the wheel shaft to be in running fit are correspondingly arranged on the side wall of the box body, and an inner ring of the third bearing and the wheel shaft are in running fit and sliding through a spline structure.

Preferably, the side wall of the hand wheel arranged on the box body is detachably connected with the rest part of the box body and is provided with an observation window.

Advantageous effects

The occluding paper is in a straight belt shape and is wound on the winding wheel, and a doctor can hand the hand wheel by hand to take the occluding paper from the winding wheel through the roller group and extend out of the paper outlet arranged on the box body. The extension length of the occluding paper is controlled through the hand wheel, so that a doctor can conveniently cut the occluding paper with proper length according to actual requirements, and waste of the occluding paper is avoided.

In the cutting process of the bite paper extending out of the box body and the bite paper, doctors do not need to directly contact with the bite paper, so that the situation that germs of patients infected with the bite paper on hands pollute the remaining bite paper is avoided, and the situation that the remaining unused bite paper becomes a pollution source and causes cross infection to the next patient is avoided.

The control mechanism in the invention can be synchronously connected with the roller group for conveying the occlusion paper and the sliding cover for cutting off the occlusion paper in a clutch way. After the control mechanism is connected with the roller set and the sliding cover, the sliding cover can slide away from the paper outlet by shaking the hand wheel, and simultaneously, the roller set rotates to send out the occluded paper on the rolling wheel through the paper outlet. After the occluding paper is sent out to a proper length, the connection between the control mechanism and the roller set and the sliding cover is only required to be synchronously disconnected, the sliding cover can automatically return to block the paper outlet under the elastic action of the reset torsion spring, and the occluding paper is cut off by a cutting knife arranged on the sliding cover for a doctor to use. Compared with the taking mode in the prior art that the occluding paper needs to be torn from the packaging box repeatedly, the operation process of the invention is very simple and convenient, which is beneficial to shortening the dental operation time and improving the operation efficiency.

Drawings

FIG. 1 is a schematic view of a static front cross-sectional structure of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a front view of the present invention;

FIG. 4 is a schematic sectional view of the present invention in a front view;

fig. 5-7 are schematic views showing the state change of the present invention in a cycle for taking a bite paper, which is started from fig. 2;

the labels in the figure are: 1. the paper feeding device comprises a box body, 101, notches, 102, a paper outlet, 2, a roller set, 201, a protective cover, 202, a driven roller, 203, a linkage gear set, 204, a roller shaft, 205, a driving roller, 3, a conical friction shaft, 4, an inner conical friction sleeve, 5, a driving gear, 6, a wheel shaft, 7, a hand wheel, 8, a reset spring, 9, meshing paper, 10, a gear shaft, 11, a reset torsion spring, 12, a clutch gear, 13, a sliding cover, 14, a cutting knife, 15, a guide rail, 16, a guide roller, 17, a rack, 18 and a winding wheel.

Detailed Description

As shown in fig. 1 and 2, the dental bite paper supply machine of the present invention comprises a rectangular box body 1, wherein the left side, the rear side, the top or the bottom of the box body 1 can be fixed on a multi-degree-of-freedom examination operation reclining chair commonly used in stomatology department, so as to facilitate the doctor to take out the bite paper 9 during the examination or operation. The inner cavity of the box body 1 is rotatably provided with a winding wheel 18 and a roller group 2, the rotation centers of which are along the horizontal direction and are parallel to each other. The continuous long-sized bite paper 9 can be wound around the outer periphery of the winding wheel 18, and the outer end of the bite paper 9 is nipped in the nip conveying section of the roller group 2. At this time, the control means controls the roller group 2 to rotate, so that the bite paper 9 is conveyed toward the outside of the housing 1 through the paper discharge port 102 provided in the right side wall of the housing 1 in fig. 2. In fig. 2, a sliding cover 13 is further arranged outside the right side wall of the box body 1, and when the roller group 2 is required to convey the occlusion paper 9 outwards, the sliding cover 13 slides upwards away from the paper outlet 102 under the action of the control mechanism, so as to ensure that the paper outlet 102 discharges paper normally; after the occluding paper 9 is conveyed to a proper length, the sliding cover 13 slides downwards at a high speed under the action of the control mechanism, so that the paper outlet 102 can be blocked, the pollution of the occluding paper 9 in the box body 1 is avoided, and the occluding paper 9 can be automatically cut off by the cutting knife 14 arranged at the lower end of the sliding cover 13, thereby facilitating the operation of a doctor.

The roller edges of the driving roller 205 and the driven roller 202 in the roller set 2 are both made of silica gel materials, and the roller edges of the driving roller 205 and the driven roller 202 are in contact with each other to jointly form a clamping conveying part of the roller set 2. Because the silica gel roller edge has good flexibility, can avoid producing the damage to interlock paper 9 in the transportation process.

The drive roller 205 is concentrically provided with a roller shaft 204 on both sides, and the driven roller 202 is concentrically provided with the roller shaft 204 only on the left side in fig. 1. The left side roll shafts 204 of the driving roll 205 and the driven roll 202 respectively penetrate through the left side wall of the box body 1 and are distributed outside the box body 1, transmission gears are respectively arranged at the left ends of the two left side roll shafts 204, the two transmission gears are meshed with each other to form a linkage gear set 203, and therefore when the driving roll 205 rotates, the driven roll 202 can be driven by the linkage gear set 203 to synchronously rotate in opposite directions. Be equipped with the protection casing 201 that is used for holding two drive gear at 1 left side position of box, protection casing 201 passes through the screw and can dismantle between the box 1 lateral wall and be connected to realize the maintenance and the maintenance to linkage gear set 203. A tapered friction shaft 3 is coaxially and fixedly arranged on a roller shaft 204 on the right side of the driving roller 205, and the large end of the tapered friction shaft 3 is fixed with the right end of the roller shaft 204. The conical surface of the conical friction shaft 3 is a rough friction surface and is mainly used for realizing the clutch connection between the roller set 2 and the control mechanism.

As shown in fig. 2 and 3, a guide rail 15 for sliding the sliding cover 13 is respectively fixed on the sidewall of the right side of the box 1 in fig. 2 and on both sides of the paper outlet 102, and a sliding slot for sliding with the guide rail 15 is correspondingly arranged on the sliding cover 13. A cutting knife 14 is arranged at the lower end of the sliding cover 13, and the cutting edge of the cutting knife 14 is inclined to the horizontal plane, which is beneficial to cutting off the occluding paper 9 at the paper outlet 102 along with the sliding of the sliding cover 13. A rack 17 in transmission connection with a control mechanism is fixedly arranged on one side of the sliding cover 13 facing the box body 1, and the rack 17 and the control mechanism are matched to realize upward sliding to make the paper outlet 102 out and downward sliding to cut off the sized occlusion paper 9 in the paper feeding process.

The control mechanisms which are respectively connected with the conical friction shaft 3 in the roller group 2 in a clutch way and the rack 17 on the sliding cover 13 in a transmission way are key components for realizing simple paper supply and simple paper cutting. As shown in fig. 1, it mainly includes a hand wheel 7 located outside the case 1 and a clutch gear 12 located inside the case 1.

The center of the hand wheel 7 is fixedly connected with the right end of the wheel shaft 6, and the left end of the wheel shaft 6 is arranged inside the box body 1 in a penetrating way through the shaft hole formed in the side wall of the box body 1, so that the wheel shaft 6 can freely rotate in the shaft hole and can slide left and right along the axial direction of the shaft hole. An inner conical friction sleeve 4 is fixedly arranged at the left end of the wheel shaft 6, and a conical hole with slightly smaller taper is arranged in the inner conical friction sleeve 4, and the shape of the conical friction sleeve corresponds to that of the conical friction shaft 3. The inner wall of the conical hole is also a rough friction surface, so that the wheel shaft 6 can be pushed leftwards to enable the conical friction shaft 3 and the inner conical friction sleeve to be jointed to the state shown in fig. 4, then the hand wheel 7 is rotated to enable the torque to be transmitted to the roller shaft 204 of the driving roller 205 through the wheel shaft 6, the inner conical friction sleeve 4 and the execution friction shaft in sequence, and the hand wheel 7 drives the roller group 2 to rotate to convey the occluding paper 9 towards the outside of the box body 1.

The center of the clutch gear 12 is fixedly connected with the left end of the gear shaft 10, the right end of the gear shaft 10 is rotatably arranged in the right side wall of the box body 1, and part of the gear edge of the clutch gear 12 is meshed with the rack 17 on the sliding cover 13 through a notch 101 formed in the side wall of the box body 1. The driving gear 5 is fixedly arranged on the wheel shaft 6, and the driving gear 5 is arranged at a position which enables the driving gear 5 to be meshed with the clutch gear 12 only in a state that the conical friction shaft 3 and the inner conical friction sleeve 4 are jointed as shown in fig. 4, so that the roller group 2 and the sliding cover 13 are synchronously jointed with the output force of the control mechanism, and the synchronous proceeding of the paper discharging of the roller group 2 and the paper sliding on the sliding cover 13 to make the paper outlet 102 out is ensured. The tooth shaft 10 of the clutch gear 12 is provided with a return torsion spring 11 so that after the drive gear 5 and the clutch gear 12 are separated from each other, the slide cover 13 is driven by the elastic force of the return torsion spring 11 to close the paper outlet 102 and the cutter 14 cuts the bite paper 9.

In this embodiment, the rotation center of the winding wheel 18 is flush with the nip conveying part of the roller group 2, and a guide roller 16 for allowing the engagement paper 9 on the winding wheel 18 to horizontally enter the nip conveying part is rotatably provided in the case 1 at a position between the winding wheel 18 and the roller group 2. A return spring 8 is sleeved on the wheel shaft 6 between the driving gear 5 and the side wall of the box body 1, and the return spring 8 is used for driving the wheel shaft 6 to slide towards the direction opposite to the conical friction shaft 3 so as to separate the inner conical friction sleeve 4 from the conical friction shaft 3 and separate the driving gear 5 from the clutch gear 12. A first bearing for rotatably matching the roller shaft 204, a second bearing for rotatably matching the gear shaft 10 and a third bearing for rotatably matching the wheel shaft 6 are correspondingly arranged on the side wall of the box body 1. The flexibility of each rotating assembly in the rotating process is ensured. The inner ring of the third bearing and the wheel shaft 6 rotate and slide in a matched mode through a spline structure. The side wall of the box body 1 provided with the hand wheel 7 is detachably connected with the rest part of the box body 1 and is provided with an observation window so as to observe the conveying condition of the occluding paper 9 in the box body 1 through the observation window, and the side wall of the detachable box is refilled with the occluding paper 9 roll. The tooth profiles of the driving gear 5 and the clutch gear 12 are both in a shape that the middle part is straight and the two ends are outwards expanded, so that the driving gear 5 and the clutch gear 12 can be conveniently jointed or separated along with the axial sliding of the wheel shaft 6. In order to prevent the cutter 14 from exposing to hurt people, the cutter 14 should be arranged close to the side wall of the box body 1 as much as possible. Or a fixed cover can be fixedly arranged on the side wall of the box body 1 corresponding to the lower limit stroke of the cutting knife 14, and a gap for accommodating the cutting knife 14 is reserved between the fixed cover and the side wall of the box body 1.

The specific application method of the invention is as follows:

first, as shown in fig. 1 and 2, the tapered friction shaft 3 and the inner tapered friction sleeve 4 are separated from each other, the drive gear 5 and the clutch gear 12 are separated from each other, and the return torsion spring 11 and the return spring 8 are in a natural state. At this time, the outer end of the bite paper 9 is held and fixed by the drive roller 205 and the driven roller 202, and the slide cover 13 closes the paper discharge port 102.

Next, as shown in fig. 4 and 5, the doctor pushes the hand wheel 7 toward the case 1, the return spring 8 is compressed, the tapered friction shaft 3 and the inner tapered friction sleeve 4 are engaged, and the drive gear 5 and the clutch gear 12 are engaged. After the hand wheel 7 is rotated clockwise in fig. 5, on one hand, the driving roller 205 is driven to rotate clockwise, and the driven roller 202 is driven to rotate counterclockwise through the linkage gear set 203, so that the occluded paper 9 is conveyed towards the outside of the box 1; on the other hand, the driving gear 5 rotating clockwise drives the clutch gear 12 to rotate counterclockwise, so that the clutch gear 12 drives the sliding cover 13 to slide upwards to open the paper outlet 102, so that the occluded paper 9 extends outwards from the paper outlet 102, and the reset torsion spring 11 deforms and accumulates potential energy in the counterclockwise rotating process of the clutch gear 12;

thirdly, the doctor continuously rotates the hand wheel 7 according to the actual requirement to make the occluding paper 9 extend to a certain length to the state shown in fig. 6. The physician pulls the hand wheel 7 away from the housing 1, and the conical friction shaft 3 and the inner conical friction sleeve 4 as well as the drive gear 5 and the clutch gear 12 are disengaged by the resilience of the return spring 8. Once the driving gear 5 and the clutch gear 12 are separated, the clutch gear 12 starts to rotate clockwise rapidly under the action of the elastic potential energy accumulated by the reset torsion spring 11, so as to cooperate with the rack 17 to drive the sliding cover 13 to slide down rapidly. At the moment, the hand wheel 7 and the roller group 2 are both separated from the clutch gear 12 and are not influenced by the reset torsion spring 11.

Finally, as shown in fig. 7, when the doctor uses tweezers to hold and fix the right end of the occlusion tooth and straighten the occlusion tooth, the cutter 14 which slides down quickly can easily cut off the occlusion tooth, and the slide cover 13 slides down to the position for blocking the paper outlet 102, so that the invention reaches the initial state as shown in fig. 2 and is ready for the next taking of the occlusion paper 9.

Claims

1. A dental occlusion paper supply machine characterized by: the paper cutting device comprises a rectangular box body (1), wherein a winding wheel (18) for winding straight-strip-shaped occluding paper (9) and a roller set (2) for conveying the occluding paper (9) towards the outside of the box body (1) through a paper outlet (102) formed in the side wall of the box body (1) are rotatably arranged in the inner cavity of the box body (1), a sliding cover (13) capable of plugging the paper outlet (102) and cutting off the occluding paper (9) is slidably arranged on the side wall of the box body (1) corresponding to the position of the paper outlet (102), and a control mechanism for driving the roller set (2) to rotate and the sliding cover (13) to slide is arranged on the side wall of the box body (1) corresponding to the position of the end part of a roller shaft (204) in the;

the roller set (2) comprises a driven roller (202) and a driving roller (205) which are contacted with each other, the contacted roller edges of the driven roller (202) and the driving roller (205) form a clamping conveying part for clamping the occluding paper (9) and can rotate along with the driven roller (202) and the driving roller (205) in the opposite direction so as to supply the occluding paper (9) to the outside of the box body (1), and a conical friction shaft (3) which can be in clutch connection with a control mechanism is arranged at the end part of a roller shaft (204) of the driving roller (205);

a cutting knife (14) for cutting off the occluding paper (9) at the paper outlet (102) position is arranged at the end part of the sliding cover (13), and a rack (17) in transmission connection with a control mechanism is fixedly arranged on one side of the sliding cover (13) facing the box body (1);

the control mechanism comprises a hand wheel (7) which is rotatably arranged on the outer side of the side wall of the box body (1) and a clutch gear (12) which is rotatably arranged on the inner side of the side wall of the box body (1), a wheel shaft (6) is fixedly arranged at the central position of the hand wheel (7), one end of the wheel shaft (6) opposite to the hand wheel (7) penetrates through the inside of the box body (1) through a shaft hole which is arranged on the side wall of the box body (1) and coaxially corresponds to the tapered friction shaft (3), the wheel shaft (6) can axially slide along the shaft hole, an inner tapered friction sleeve (4) which can be engaged with or separated from the tapered friction shaft (3) along with the axial sliding of the wheel shaft (6) is arranged at one end of the wheel shaft (6) positioned in the box body (1), a driving gear (5) is coaxially fixed on the wheel shaft (6), and the driving gear (5) is engaged with the clutch gear (12) only in a state that the, a return spring (8) is sleeved at a position, located between the driving gear (5) and the side wall of the box body (1), on the wheel shaft (6), the return spring (8) is used for driving the wheel shaft (6) to slide towards the direction opposite to the conical friction shaft (3) so as to enable the inner conical friction sleeve (4) to be separated from the conical friction shaft (3) and the driving gear (5) to be separated from the clutch gear (12); partial tooth edges of the clutch gear (12) are meshed with the rack (17) through a notch (101) formed in the side wall of the box body (1), so that the hand wheel (7) is rotated under the state that the conical friction shaft (3) and the inner conical friction sleeve (4) are connected, the roller set (2) can be synchronously driven to convey occluded paper (9) and the sliding cover (13) to slide away from the paper outlet (102), a reset torsion spring (11) is arranged on the tooth shaft (10) of the clutch gear (12), and after the driving gear (5) and the clutch gear (12) are separated, the sliding cover (13) is driven by the elasticity of the reset torsion spring (11) to block the paper outlet (102) and cut off the occluded paper (9) through the cutting knife (14).

2. A dental bite paper supply machine according to claim 1, wherein: the rotation centers of the roller group (2) and the winding wheel (18) are distributed along the horizontal direction, and the driven roller (202) is positioned right above the driving roller (205).

3. A dental bite paper supply machine according to claim 2, wherein: the rotation center of the winding wheel (18) is flush with the clamping conveying part of the roller set (2), and a guide roller (16) for the meshing paper (9) on the winding wheel (18) to horizontally enter the clamping conveying part is rotatably arranged at a position between the winding wheel (18) and the roller set (2) in the box body (1).

4. A dental bite paper supply machine according to claim 2, wherein: the roller edges of the driving roller (205) and the driven roller (202) are both made of silica gel materials.

5. A dental bite paper supply machine according to claim 2, wherein: the sliding cover (13) is distributed on the side wall of the box body (1) in a sliding mode along the vertical direction, guide rails (15) are arranged on the two sides, located on the paper outlet (102), of the side wall of the box body (1) respectively, and sliding grooves in sliding fit with the guide rails (15) are correspondingly arranged on the sliding cover (13).

6. A dental bite paper supply machine according to claim 5, wherein: the cutting knife (14) is fixedly arranged at the lower end of the sliding cover (13), and the blade part of the cutting knife (14) is distributed obliquely to the horizontal plane.