CN215395489U - Medicine cutting device - Google Patents

Abstract

The utility model discloses a medicine cutting device, which comprises: a support; a first drive mechanism having a first output shaft; a cam plate coupled to the first output shaft; and a cutter assembly comprising: the tool rest is fixedly connected to the bracket; the cutter is telescopically connected to the cutter frame; the first elastic piece is coupled between the cutter frame and the cutter and used for enabling the cutter to have a tendency to return to the first limit position when the cutter moves from the first limit position to the second limit position; the contour surface of the cam plate is suitable for abutting against the cutter rest and is used for driving the cutter to switch between a first limit position and a second limit position. The medicine cutting device is high in medicine cutting efficiency, high in standard degree, safe and reliable.

Description

Medicine cutting device

Technical Field

The utility model relates to the field of traditional Chinese medicine processing equipment, in particular to a medicine cutting device.

Background

In the process of processing the traditional Chinese medicinal materials, the traditional Chinese medicinal materials need to be cut; among the prior art, the medicine cutting device who adopts uses the cutter cutting for the manual work, this kind of cutting mode, machining efficiency is low, and the cutting is nonstandard, uses the cutter moreover for a long time and can bring the potential safety hazard for medical personnel.

Disclosure of Invention

In view of the above-mentioned problems and needs, the present invention provides a medicine cutting device, which can achieve the above-mentioned technical objectives and bring other technical effects due to the following technical features.

The utility model provides a medicine cutting device, which comprises:

a support;

a first drive mechanism having a first output shaft;

a cam plate coupled to the first output shaft; and

a cutter assembly comprising:

the tool rest is fixedly connected to the bracket;

the cutter is telescopically connected to the cutter frame;

the first elastic piece is coupled between the cutter frame and the cutter and used for enabling the cutter to have a tendency to return to the first limit position when the cutter moves from the first limit position to the second limit position;

the contour surface of the cam disc is suitable for being abutted against the cutter and is used for driving the cutter to switch between a first limit position and a second limit position.

In the technical scheme, when the medicine cutting device works, the cam disc is driven to rotate by the first driving mechanism, when the eccentric motion of the cam disc drives the cutter abutted against the cam disc to move from the first limit position to the second limit position, in the process, the first elastic piece is extruded to generate a tendency force of restoring to the first limit position when the first elastic piece moves from the first limit position to the second limit position, and at the moment, the cutter cuts the medicinal materials on the bracket; when the eccentric motion of the cam disc releases the support of the cutter at the second limit position, in the process, the tending force of the first elastic part is released to enable the cutter to always support against the eccentric wheel until the cutter moves to the first limit position, and one medicine cutting action is completed; then repeating the steps to cut the medicine; the medicine cutting device is high in medicine cutting efficiency, high in standard degree, safe and reliable.

In addition, the medicine cutting device according to the present invention may further have the following technical features:

in one example of the present invention, the cutter includes:

a shank portion relatively movably coupled with the tool holder;

and the cutter part is connected at the lower end of the cutter handle part, and the cutting edge of the cutter part is opposite to the bottom plate of the bracket.

In one example of the present invention, a stopper is disposed at an upper end of the shank portion, and a contour surface of the cam plate abuts against the stopper.

In one example of the present invention, the first elastic member is a compression spring, which is sleeved on the handle portion, and has a lower end abutting on the tool holder and an upper end abutting on the baffle.

In one example of the present invention, the cutter portion includes a plurality of cutter portions and is provided at intervals in a lateral direction perpendicular to a height direction in which the cutter portion moves;

wherein, the lower extreme of hilt portion disposes the connecting plate, cutter portion hookup is on the connecting plate.

In one example of the present invention, the cutter portion is detachably adjustably coupled to the shank portion in the lateral direction.

In one example of the utility model, the cutter portion and the shank portion are coupled by a fastener therebetween;

at least two oblong holes extending in the transverse direction of the coupling plate and arranged at intervals in the longitudinal direction;

the cutter part is at least provided with two positioning holes corresponding to the long round holes;

the fastener sequentially penetrates through the long round hole and the positioning hole;

wherein the longitudinal direction, the transverse direction and the height direction are mutually perpendicular to each other.

In one example of the present invention, the method further comprises: sweep the material subassembly, it includes:

a sweep bar pivotably coupled to the carriage such that the sweep bar sweeps at least an orthographic location of the cutter on the carriage;

the second elastic piece is coupled to the sweeping rod and used for enabling the cutter to have the tendency of restoring to the third extreme position when the sweeping rod moves from the third extreme position to the fourth extreme position;

and the second driving mechanism is suitable for being connected with the sweeping rod and used for driving the sweeping rod to switch between the third limit position and the fourth limit position.

In one example of the present invention, the method further comprises: a non-all gear set comprising:

a first non-full tooth fixedly coupled with a second output shaft of the second drive mechanism;

a second non-full tooth fixedly coupled to the sweep bar and adapted to mesh with the first non-full tooth;

wherein the second non-full tooth and the first non-full tooth have an engaged section and a non-engaged section, and when the second non-full tooth and the first non-full tooth are in the engaged section, the sweep bar moves from a third extreme position to a fourth extreme position; when the second non-full tooth and the first non-full tooth are in a non-meshing section, the sweeping rod has a fourth limit position to move to a third limit position under the action of the second elastic piece.

In one example of the present invention, the method further comprises: a speed reduction mechanism having:

the driving gear is fixedly connected with an output shaft of the first driving mechanism;

the driven tooth is fixedly connected with the cam disc and meshed with the driving tooth;

and the number of teeth of the driving tooth is less than that of the driven tooth.

The following description of the preferred embodiments for carrying out the present invention will be made in detail with reference to the accompanying drawings so that the features and advantages of the present invention can be easily understood.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. Wherein the drawings are only for purposes of illustrating some embodiments of the utility model and are not to be construed as limiting the utility model to all embodiments thereof.

FIG. 1 is a front view of a cutting device according to an embodiment of the present invention;

FIG. 2 is a right side view of a cutting device according to an embodiment of the present invention;

FIG. 3 is a schematic view of a cutter according to an embodiment of the present invention;

FIG. 4 is a schematic illustration of a non-full gearset according to an embodiment of the utility model.

List of reference numerals:

a medicine cutting device 100;

a support 110;

a first drive mechanism 120;

a first output shaft 121;

a cam plate 130;

a cutter assembly 140;

a tool holder 141;

a cutter 142;

a shank 1421;

a cutter portion 1422;

a baffle 1423;

a coupling plate 1424;

an oblong hole 14241;

the first elastic member 143;

a sweeping assembly 150;

a sweep bar 151;

a rotating shaft 1511;

a second elastic member 152;

a second drive mechanism 153;

a non-full gear set 154;

first non-full tooth 1541;

second non-full teeth 1542;

a speed reduction mechanism 160;

a drive tooth 161;

the driven teeth 162;

the shaft 170 is supported.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

A medicine cutting device 100 according to the present invention, as shown in fig. 1 and 2, includes:

a support 110 for supporting other components coupled to the cutting device 100;

a first drive mechanism 120 having a first output shaft 121; for example, the first driving mechanism 120 is a driving motor;

a cam plate 130 coupled to the first output shaft 121, that is, the cam plate 130 is rotated by the first driving mechanism 120; and

cutter assembly 140, comprising:

a tool holder 141 fixedly coupled to the bracket 110;

a cutter 142 telescopically connected to the cutter holder 141;

a first elastic member 143 coupled between the tool holder 141 and the cutter 142 for making the cutter 142 have a tendency to return to the first limit position when the cutter 142 moves from the first limit position to the second limit position;

wherein, the contour surface of the cam disc 130 is suitable for abutting against the cutter 142 and is used for driving the cutter 142 to switch between a first limit position and a second limit position.

When the medicine cutting device 100 works, the cam disc 130 is driven to rotate by the first driving mechanism 120, and when the eccentric motion of the cam disc 130 drives the cutter 142 which is in contact with the cam disc to move from the first limit position to the second limit position, in the process, the first elastic element 143 is pressed to generate a tendency force for restoring to the first limit position when the first elastic element moves from the first limit position to the second limit position, and at the moment, the cutter 142 cuts the medicinal materials on the bracket 110; when the eccentric motion of the cam disc 130 releases the support of the cutter 142 at the second limit position, in the process, the trend force of the first elastic part 143 is released to ensure that the cutter 142 always supports against the eccentric wheel until the cutter moves to the first limit position, and a medicine cutting action is finished; then repeating the steps to cut the medicine; the medicine cutting device 100 has high medicine cutting efficiency, high standard degree, safety and reliability.

In one example of the present invention, the cutter 142 includes:

a tool shank 1421 coupled to the tool holder 141 to be movable relative thereto;

a cutter part 1422 coupled to a lower end of the tool shank 1421, and having a cutting edge disposed opposite to the bottom plate of the support 110;

that is, the handle part 1421 moves up and down with respect to the blade holder 141 by the first elastic member 143, and at the same time, the cutter part 1422 repeatedly cuts the medicinal material on the bottom plate of the support 110.

In an example of the present invention, a stop 1423 is disposed at the upper end of the tool shank 1421, and the contour surface of the cam disk 130 abuts against the stop 1423;

the contact area between the cam disc 130 and the shank 1421 of the cutter 142 can be increased by providing the stop 1423, so that effective contact between the cutter 142 and the cam disc 130 is ensured, and the movement stability of the cutter 142 is ensured.

In an example of the present invention, the first elastic element 143 is a compression spring, which is sleeved on the handle portion 1421, and has a lower end abutting on the tool holder 141 and an upper end abutting on the stop 1423;

more specifically, during the movement of the cutter 142 driven by the cam plate 130 from the first limit position to the second limit position, the shank 1421 moves downward in the height direction to compress a compression spring, which stores an elastic force during the movement, so that when the cutter 142 moves to the second limit position, the cutter has a maximum elastic force restored to the first limit position at this time; when the cam disc 130 is gradually separated from the cutter 142 from the second limit position, the cutter 142 is always in contact with the cam disc 130 under the elastic force of the compression spring until the cam disc 130 moves to the first limit position; the reciprocating motion of the cutter 142 can be realized through the above structure;

of course, the present invention is not limited thereto, and the first elastic element 143 may also be an extension spring, which is sleeved on the handle portion 1421 and located at the lower end of the tool holder 141, wherein the lower end of the extension spring is coupled to the cutting knife 142, and the upper end thereof is coupled to the tool holder 141; the principle mechanism of the reciprocating motion is similar to that of a compression spring, but when the handle part 1421 moves downwards, the extension spring makes extension motion, and when the handle part 1421 moves upwards, the extension spring makes retraction motion, which is not described herein again.

In an example of the present invention, the cutter part 1422 includes a plurality of parts and is spaced apart in a transverse direction perpendicular to a height direction in which the cutter part 1422 moves;

wherein, the lower end of the tool shank 1421 is provided with a coupling plate 1424, and the tool cutting portion 1422 is coupled to the coupling plate 1424;

the connection between the cutter part 1422 and the cutter handle part 1421 can be facilitated by arranging the connecting plate 1424 at the lower end of the cutter handle part 1421; can once carry out the multistage cutting with the medicinal material through setting up a plurality of cutter portions 1422, improve cutter portion 1422's cutting efficiency greatly.

Preferably, the span between adjacent two cutter portions 1422 in the transverse direction is equal, thereby ensuring the cutting standardization.

In one example of the present invention, the cutter portion 1422 is detachably and adjustably coupled to the handle portion 1421 in the lateral direction;

that is, the cutter parts 1422 can be adjusted and moved along the transverse direction, so as to change the span between two adjacent cutter parts 1422 in the transverse direction, and change the size of the cut medicinal material according to actual needs; meanwhile, the cutter part 1422 is of a detachable structure, so that the cutter part 1422 can be replaced and maintained conveniently.

In one example of the present invention, as shown in fig. 3, the cutter portion 1422 is coupled to the shank portion 1421 by a fastener;

at least two oblong holes 14241 extending in the transverse direction of said coupling plate 1424 and arranged at intervals in the longitudinal direction;

the cutter part 1422 is provided with at least two positioning holes corresponding to the oblong holes 14241;

the fastener penetrates through the long round hole 14241 and the positioning hole in sequence;

wherein the longitudinal direction, the transverse direction and the height direction are mutually perpendicular;

specifically, the long circular hole 14241 is a graph formed by drawing a circle along a straight line or an arc line at two ends of a circle, wherein two points on the same straight line on the selected circle or two arcs on the selected circle are symmetrical with respect to the circle. For example, oblong hole 14241 may be as shown in fig. 3. The position of the cutter part 1422 on the handle part 1421 can be adjusted by arranging the oblong hole 14241, so that the span between two adjacent cutter parts 1422 is adjusted, and the size of medicinal material cutting is changed.

In one example of the present invention, the method further comprises: a sweeping assembly 150, comprising:

a sweep bar 151 pivotably coupled to the holder 110 such that the sweep bar 151 sweeps at least an orthographic projection position of the cutter 142 on the holder 110; for example, a rotation shaft 1511 is fixedly provided at one end of the sweep lever 151 in the height direction, and the rotation shaft 1511 is pivotally coupled to the bottom plate of the bracket 110 by a bearing, that is, a first mounting hole is provided in the bracket 110, an outer race of the bearing is fixedly coupled in the first mounting hole, and an inner race of the bearing is fixedly coupled to the rotation shaft.

A second elastic member 152 coupled to the sweep bar 151 for providing the cutter blade 142 with a force tending to return to the third extreme position when the sweep bar 151 moves from the third extreme position to the fourth extreme position;

a second driving mechanism 153 adapted to be coupled to the sweep rod 151 for driving the sweep rod 151 to switch between a third limit position and a fourth limit position;

that is, after the cutting knife 142 cuts a certain amount of medicinal material, the medicinal material on the bottom plate of the support 110 needs to be collected, the second driving mechanism 153 drives the sweeping rod 151 to rotate from the third extreme position along a certain direction, and when the sweeping rod 151 rotates and sweeps to the orthographic projection position of the cutting knife 142 on the support 110, the medicinal material at the position can be swept to a specified position (fourth extreme position) so as to facilitate the cutting knife 142 to continue to cut the medicinal material; in this process, the second elastic member 152 stores an elastic force, for example, the second elastic member 152 may be a torsion spring, which is sleeved on the rotation shaft 1511, and one pin thereof is fixedly coupled to the sweep bar 151 and the other pin thereof is fixedly coupled to the bracket 110. When the second driving mechanism 153 continues to move after the scan rod 151 reaches the fourth limit position, the scan rod 151 is restored to the third limit position by the second elastic member 152.

In one example of the present invention, as shown in fig. 4, the method further includes: a non-all gear set 154 comprising:

a first non-full tooth 1541 fixedly coupled with a second output shaft of the second drive mechanism 153;

a second non-full tooth 1542 fixedly coupled to the sweeping bar 151 and adapted to mesh with the first non-full tooth 1541; specifically, the second non-full tooth 1542 is fixedly coupled with the rotating shaft 1511 on the sweep bar 151;

wherein the second non-full tooth 1542 and the first non-full tooth 1541 have an engaged section and a non-engaged section, and when the second non-full tooth 1542 and the first non-full tooth 1541 are in the engaged section, the bar 151 moves from a third extreme position to a fourth extreme position; when the second non-full tooth 1542 is in a non-meshing segment with the first non-full tooth 1541, the sweeping bar 151 moves to a fourth limit position under the action of the second elastic member 152;

that is to say, when the medicinal materials on the collecting rack 110 need to be cleaned, the second driving mechanism 153 drives the first non-full tooth 1541 to rotate, the first non-full tooth 1541 drives the second non-full tooth 1542 engaged therewith to rotate, so as to drive the sweeping bar 151 to rotate, that is, the process of moving from the third limit position to the fourth limit position is completed, when the second driving mechanism 153 continues to drive the first non-full tooth 1541 to rotate, at this time, the first non-full tooth 1541 and the second non-full tooth 1542 are disengaged from each other (enter into the non-engaged section), and the sweeping bar 151 is restored to the third limit position under the action of the second elastic member 152; when the second driving mechanism 153 continues to drive the first non-full teeth 1541 to rotate, the first non-full teeth 1541 are engaged with the second non-full teeth 1542 again and enter the engaged section again; this non-all gear group 154 can realize sweeping the reciprocating motion of pole 151, and the medicinal material that the convenient cutting was accomplished is collected in unison.

In one example of the present invention, the method further comprises: a speed reduction mechanism 160 having:

a driving tooth 161 fixedly coupled to an output shaft of the first driving mechanism 120;

a driven tooth 162 fixedly coupled to the cam plate 130 and engaged with the driving tooth 161;

wherein, the number of teeth of the driving tooth 161 is less than that of the driven tooth 162.

Specifically, the support shaft 170 is further included, and is pivotably coupled with the bracket 110, for example, may be cantilever-coupled on the bracket 110 through a bearing, that is, a second mounting hole is provided on the bracket 110, an outer ring of the bearing is fixedly coupled in the second mounting hole, and the support shaft 170 is fixedly coupled with an inner ring of the bearing; the driven gear 162 and the cam plate 130 are fixedly coupled to the supporting shaft 170 in sequence in the transverse direction along the supporting shaft 170, the driving gear 161 is driven to rotate by the first driving mechanism 120, the driven gear 162 meshed with the driving gear 161 is driven to rotate by the driving gear 161, and the supporting shaft 170 and the driven gear 162 rotate synchronously, so that the rotation of the cam plate 130 is realized. It is to be noted that the rigidity of the support shaft 170 can satisfy the use condition without being bent and deformed by the driving of the first driving mechanism 120.

In one example of the present invention, the method further comprises: a controller for controlling the operation of the electronic device,

the driving mechanism is coupled to the first driving mechanism 120 and the second driving mechanism 153, and is used for controlling the first driving mechanism 120 and the second driving mechanism 153 to perform corresponding actions;

specifically, when the medicine cutting device 100 works, the controller controls the first driving mechanism 120 to drive the cam disc 130 to rotate, and when the eccentric motion of the cam disc 130 drives the cutter 142 against the cam disc to move from the first limit position to the second limit position, in the process, the first elastic element 143 is pressed to generate a tendency force of returning to the first limit position when the cutter 142 moves from the first limit position to the second limit position, and at this time, the cutter 142 cuts the medicinal material on the bracket 110; when the eccentric motion of the cam disc 130 releases the support of the cutter 142 at the second limit position, in the process, the trend force of the first elastic part 143 is released to ensure that the cutter 142 always supports against the eccentric wheel until the cutter moves to the first limit position, and a medicine cutting action is finished; then repeating the steps to cut the medicine; when the medicinal materials on the collecting bracket 110 need to be cleaned, the controller controls the first driving mechanism 120 to stop moving after the cutter 142 moves to the first limit position; meanwhile, the controller controls the second driving mechanism 153 to drive the first non-full tooth 1541 to rotate, the first non-full tooth 1541 drives the second non-full tooth 1542 engaged with the first non-full tooth 1541 to rotate, so as to drive the sweeping rod 151 to rotate, that is, the process of moving the third limit position to the fourth limit position is completed, when the second driving mechanism 153 continues to drive the first non-full tooth 1541 to rotate, at this time, the first non-full tooth 1541 and the second non-full tooth 1542 are disengaged from each other (enter a non-engaged section), and the sweeping rod 151 is restored to the third limit position under the action of the second elastic member 152; when the second driving mechanism 153 continues to drive the first non-full teeth 1541 to rotate, the first non-full teeth 1541 are engaged with the second non-full teeth 1542 again and enter the engaged section again; after the sweeping collection is completed (the sweeping rod 151 is at the third limit position), the controller controls the second driving mechanism 153 to stop moving, and controls the first driving mechanism 120 to perform actions; the medicine cutting device 100 has high medicine cutting efficiency, high standard degree, safety and reliability.

While the exemplary embodiment of the cutting device 100 proposed by the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and changes can be made to the specific embodiments described above without departing from the concept of the present invention, and various combinations of the technical features and structures proposed by the present invention can be made without departing from the scope of the present invention, which is defined by the appended claims.

Claims (10)

1. A cut medicine device, characterized by, includes:

a support (110);

a first drive mechanism (120) having a first output shaft (121);

a cam plate (130) coupled to the first output shaft (121); and

a cutter assembly (140), comprising:

a tool holder (141) fixedly coupled to the bracket (110);

the cutter (142) is telescopically connected to the cutter frame (141);

a first elastic member (143) coupled between the tool holder (141) and the cutter (142) for giving the cutter (142) a tendency to return to the first extreme position when the cutter (142) moves from the first extreme position to the second extreme position;

wherein the profile surface of the cam disc (130) is adapted to abut against the cutter (142) for driving the cutter (142) to switch movement between a first extreme position and a second extreme position.

2. The cutting device of claim 1,

the cutter (142) includes:

a shank portion (1421) coupled to the tool holder (141) so as to be relatively movable;

a cutter part 1422 coupled to a lower end of the handle part 1421 and having a cutting edge disposed opposite to the bottom plate of the holder 110.

3. The cutting device of claim 2,

a baffle plate (1423) is arranged at the upper end of the cutter handle part (1421), and the contour surface of the cam disc (130) is abutted against the baffle plate (1423).

4. The cutting device of claim 3,

the first elastic element (143) is a compression spring, which is sleeved on the tool shank portion (1421), and the lower end of the first elastic element abuts against the tool holder (141), and the upper end of the first elastic element abuts against the baffle (1423).

5. The cutting device of claim 2,

the cutter parts (1422) comprise a plurality of cutter parts and are arranged at intervals along a transverse direction which is vertical to the height direction of the movement of the cutter parts (1422);

wherein, the lower end of the tool shank part (1421) is provided with a coupling plate (1424), and the cutter part (1422) is coupled on the coupling plate (1424).

6. The cutting device of claim 5,

the cutter portion (1422) is detachably adjustably coupled to the handle portion (1421) in the transverse direction.

7. The cutting device of claim 6,

the cutter portion (1422) and the shank portion (1421) are coupled by a fastener;

at least two oblong holes (14241) extending in the transverse direction of the coupling plate (1424) and arranged at intervals in the longitudinal direction;

the cutter part (1422) is provided with at least two positioning holes corresponding to the long round holes (14241);

the fastener penetrates through the long round hole (14241) and the positioning hole in sequence;

wherein the longitudinal direction, the transverse direction and the height direction are mutually perpendicular to each other.

8. The cutting device of claim 1,

further comprising: a sweeping assembly (150) comprising:

a sweep bar (151) pivotably coupled to the carriage (110) such that the sweep bar (151) sweeps at least an orthographic location of the cutter (142) on the carriage (110);

a second elastic member (152) coupled to the sweep bar (151) for giving the cutter (142) a tendency to return to a third extreme position when the sweep bar (151) moves from the third extreme position to a fourth extreme position;

a second driving mechanism (153) adapted to be coupled with the sweep rod (151) for driving the sweep rod (151) to switch movement between a third limit position and a fourth limit position.

9. The cutting device of claim 8,

further comprising: a non-all gear set (154) comprising:

a first non-full tooth (1541) fixedly coupled with a second output shaft of the second drive mechanism (153);

a second non-full tooth (1542) fixedly coupled to the sweep bar (151) and adapted to mesh with the first non-full tooth (1541);

wherein the second non-full tooth (1542) and the first non-full tooth (1541) have an engaged section and a non-engaged section, the sweep bar (151) moving from a third extreme position to a fourth extreme position when the second non-full tooth (1542) and the first non-full tooth (1541) are in the engaged section; when the second non-full tooth (1542) and the first non-full tooth (1541) are in a non-meshing section, the sweep bar (151) has a fourth limit position moved to a third limit position by the second elastic member (152).

10. The cutting device of claim 1,

further comprising: a speed reduction mechanism (160) having:

a driving tooth (161) fixedly coupled with an output shaft of the first driving mechanism (120);

the driven tooth (162) is fixedly coupled with the cam plate (130) and is meshed with the driving tooth (161); wherein the number of teeth of the driving teeth (161) is less than the number of teeth of the driven teeth (162).

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