Material shifting disc composite motion driving system

Abstract

The invention relates to the technical field of food processing equipment manufacturing, in particular to a compound motion driving system for a material stirring disc, which takes a transmission shaft as a power input source, and respectively converts power of the transmission shaft into driving force for driving a reciprocating jacking mechanism and a reciprocating rotary transmission mechanism through a jacking driving cam mechanism and a rotary driving cam mechanism which are in power connection. And finally, the material shifting disc synchronously realizes the compound motion of reciprocating up-down displacement and reciprocating rotation. Therefore, on one hand, the single-shaft linkage double-cam structure is adopted, and compared with traditional complex power configuration, the problems of high cost, complex debugging and large occupied space are effectively solved; and on the other hand, based on the precise profile curve design of the cam mechanism, the rotating motion of the transmission shaft can be precisely converted into the compound motion of the material stirring disc, so that the power conversion efficiency and the motion control precision are remarkably improved, and the stable operation of the material stirring disc in long-time continuous operation is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of food processing equipment manufacturing, in particular to a compound motion driving system for a feeding disc. Background Art

[0002] In the automated production process of gluten products, the feed disc is a key component for achieving gluten winding and molding. Its movement accuracy and efficiency directly affect the uniformity of gluten winding and product molding quality.

[0003] In order to achieve the compound movement of the feeding disc to meet production needs, some manufacturers have tried to use multiple independent motors to drive linear motion and rotary motion respectively. However, this type of drive solution has significant defects, specifically: 1) The configuration of multiple motors greatly increases the manufacturing cost of the gluten wrapping machine, and the installation and debugging process of the motor is complicated, which not only takes up a large amount of production space, but also increases the difficulty of equipment maintenance; 2) Due to the differences in the response characteristics of different motors, the coordinated control of multiple motors is extremely difficult, and it is very easy to have asynchronous motion during operation, resulting in chaotic gluten wrapping movements. Therefore, it is urgent for those skilled in the art to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a material-diverting plate compound motion drive system with a compact design structure, high motion precision, and the ability to achieve compound motion of the material-diverting plate through a single power source, so as to solve the problems existing in the prior art.

[0005] The present invention relates to a composite motion drive system for a material-digging disc, wherein the material-digging disc is mounted on a main shaft and comprises:

[0006] The drive shaft, serving as the power input source;

[0007] The lifting drive cam mechanism is connected to the power of the transmission shaft and is used to convert the power transmitted by the transmission shaft into the driving force for driving the reciprocating lifting mechanism;

[0008] The rotary drive cam mechanism is connected to the power of the transmission shaft and is used to convert the power transmitted by the transmission shaft into the driving force for driving the reciprocating rotary transmission mechanism;

[0009] The reciprocating lifting mechanism and the reciprocating rotary transmission mechanism are both connected to the main shaft transmission, so that the material-dispensing plate can synchronously perform the compound motion of reciprocating up and down displacement and reciprocating rotation.

[0010] As a further improvement of the technical solution disclosed in the invention, the lifting drive cam mechanism includes a lifting drive cam and a lifting drive follower;

[0011] The lifting drive cam is fixedly connected to the transmission shaft and rotates synchronously;

[0012] The reciprocating jacking mechanism includes a reciprocating jacking driving swing arm;

[0013] One end of the reciprocating lifting drive swing arm forms a rotating pair with the machine table through a pivot, and the other end is provided with a pusher part that contacts the main shaft and serves as the mounting carrier of the lifting drive follower; the lifting drive follower and the contour curve of the lifting drive cam form a rolling contact pair;

[0014] The rotational motion of the lifting drive cam is converted into the yaw motion of the reciprocating lifting drive swing arm, and is converted into the reciprocating up and down displacement motion of the main shaft through the push top.

[0015] As a further improvement of the technical solution disclosed in the invention, the lifting drive follower is a roller follower; the outer peripheral surface of the lifting drive follower forms a rolling contact with the contour curve of the lifting drive cam.

[0016] As a further improvement of the technical solution disclosed in the invention, the rotary drive cam mechanism includes a rotary drive cam and a rotary drive follower;

[0017] The rotary drive cam is fixedly connected to the transmission shaft and rotates synchronously;

[0018] The reciprocating rotary transmission mechanism includes a reciprocating rotary driving swing arm, a transmission connecting rod unit and a reciprocating rotary driven swing arm;

[0019] One end of the reciprocating rotary drive swing arm forms a rotating pair with the machine table through a pivot, and the other end is hinged to the transmission connecting rod unit;

[0020] The rotary drive follower is installed in the middle of the reciprocating rotary drive swing arm and forms a rolling contact pair with the contour curve of the rotary drive cam;

[0021] A separable side-thrust contact pair is formed between the transmission connecting rod unit and the reciprocating driven swing arm;

[0022] The reciprocating driven swing arm is fixedly connected to the main shaft and rotates synchronously with the main shaft.

[0023] As a further improvement of the technical solution disclosed in the invention, the transmission connecting rod unit includes a connecting plate assembly, a first connecting rod, a second connecting rod, a third connecting rod and a side thrust piece that are hinged in sequence; the connecting plate assembly is hinged to the reciprocating driving swing arm to form a rotating pair; the side thrust piece is used to directly push the reciprocating driven swing arm, and it is hinged to the machine table to form a rotating pair.

[0024] As a further improvement of the technical solution disclosed in the invention, the transmission connecting rod unit also includes an auxiliary support unit; the auxiliary support unit includes a mounting seat, a roller and a load-bearing rail; the mounting seat is mounted on the side thrust member and serves as the installation base of the roller; the load-bearing rail is fixedly installed on the machine and forms a rolling contact pair with the roller; during the process of the side thrust member performing the yaw motion, the roller rolls along the load-bearing rail.

[0025] As a further improvement of the technical solution disclosed in the invention, the rotary drive follower is a roller follower; the outer peripheral surface of the rotary drive follower forms a rolling contact with the contour curve of the rotary drive cam.

[0026] As a further improvement of the technical solution disclosed in the invention, the composite motion drive system of the material-diverting plate also includes an elastic reset unit; the elastic reset unit includes at least three circumferentially evenly distributed tension springs connected between the material-diverting plate and the machine.

[0027] As a further improvement of the technical solution disclosed in the invention, the elastic modulus of the tension spring is preferably 180-200 GPa, and the yield strength is not less than 1500 MPa.

[0028] In practical applications, the compound motion drive system of the feeding plate disclosed in the present invention can achieve at least the following beneficial technical effects, specifically:

[0029] 1) A single transmission shaft is used as the power core, and the lifting drive cam mechanism and the rotary drive cam mechanism are linked. That is, during the rotation of the transmission shaft, the lifting drive cam and the rotary drive cam are synchronously driven to rotate, and the two use the cam profile curve to convert the rotary motion into a linear reciprocating motion and rotary reciprocating motion with specific rules respectively. Among them, the lifting drive cam pushes the lifting drive follower through the profile curve, and realizes the up and down displacement of the material disc through the reciprocating lifting mechanism and other transmission components; and the rotary drive cam drives the rotary drive follower to transmit power to the reciprocating rotary transmission mechanism, driving the material disc to rotate. In this way, not only is the precise coordination of the up and down displacement and the rotary motion of the material disc ensured, but also the power loss is greatly reduced, and the operating stability and reliability of the compound motion drive system of the material disc are improved;

[0030] 2) Accurately converting the rotary motion of the drive shaft into the compound motion of the feed disc, significantly improving the power conversion efficiency and motion control accuracy, ensuring that the feed disc always maintains stable and precise reciprocating up and down displacement and rotational motion during long-term continuous operation;

[0031] 3) By flexibly adjusting the contour curves and transmission parameters of the linked lifting drive cam mechanism and the rotary drive cam mechanism, the motion trajectory and speed of the feed disc can quickly respond to the production needs of gluten products with different specifications and process requirements. Whether it is conventional gluten products or new special-shaped products, the winding operation can be completed efficiently, providing strong support for the flexible upgrade of gluten product production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 It is a three-dimensional schematic diagram of the gluten roll winding machine disclosed in the present invention.

[0034] Figure 2 It is also a three-dimensional schematic diagram of the gluten roll winding machine disclosed in the present invention (the gluten body feeding machine and the gluten body forming machine are both hidden).

[0035] Figure 3 It is a three-dimensional schematic diagram of the gluten circulation machine disclosed in the present invention.

[0036] Figure 4 yes Figure 3 Front view of .

[0037] Figure 5 It is a three-dimensional schematic diagram from one perspective of the compound motion driving system of the material-diverting plate in the gluten circulation machine disclosed in the present invention.

[0038] Figure 6 It is a three-dimensional schematic diagram from another perspective of the composite motion driving system of the material-diverting plate in the gluten circulation machine disclosed in the present invention.

[0039] Figure 7 It is a schematic diagram of the state after the jacking drive cam mechanism and the reciprocating jacking mechanism in the composite motion drive system of the feeding plate disclosed in the present invention are assembled.

[0040] Figure 8 It is a schematic diagram of the state from one viewing angle after the rotary drive cam mechanism and the reciprocating rotary transmission mechanism in the composite motion drive system of the feeding disc disclosed in the present invention are assembled.

[0041] Figure 9 It is a schematic diagram of the state from another perspective after the rotary drive cam mechanism and the reciprocating rotary transmission mechanism in the composite motion drive system of the feeding disc disclosed in the present invention are assembled.

[0042] 1-machine; 2-gluten feeding machine; 3-gluten forming machine; 4-gluten circulation machine; 41-feeding plate; 42-spindle; 43-compound motion drive system; 431-drive shaft; 432-lifting drive cam mechanism; 4321-lifting drive cam; 4322-lifting drive follower; 433-reciprocating lifting mechanism; 4331-reciprocating lifting drive swing arm; 434-rotation drive cam mechanism; 4341-rotation drive cam; 4342-rotation drive follower; 435 ...41-rotation drive cam; 4342-rotation drive follower; 435-reciprocating lifting mechanism; 4341-rotation drive cam; 4342-rotation drive follower; 435-reciprocating lifting mechanism; 4341-rotation drive cam; 4342-rotation drive follower; 435-reciprocating lifting mechanism; 4341-rotation drive cam; 4342-rotation drive follower; 435-reciprocating lifting mechanism; 43 Reciprocating rotary transmission mechanism; 4351-reciprocating rotary driving swing arm; 4352-transmission connecting rod unit; 43521-connecting plate assembly; 43522-first connecting rod; 43523-second connecting rod; 43524-third connecting rod; 43525-side thrust member; 43526-auxiliary support unit; 435261-mounting seat; 435262-roller; 435263-load-bearing rail; 4353-reciprocating rotary driven swing arm; 43531-load-bearing column; 436-elastic reset unit; 4361-tension spring. DETAILED DESCRIPTION

[0043] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "up", "down", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] The present invention will be further described in detail below with reference to specific embodiments. Figure 1 、 Figure 2 The gluten roll and winding machine disclosed in the present invention is shown in a three-dimensional schematic diagram. It can be seen that it includes a machine table 1, a gluten feeding machine 2, a gluten forming machine 3, and a gluten circulation machine 4. The gluten feeding machine 2 is placed and fixed on the machine table 1, while the gluten forming machine 3 and the gluten circulation machine 4 are sequentially arranged downstream of the gluten feeding machine 2. After the gluten passes through the gluten feeding machine 2 and the gluten forming machine 3, it is accurately formed into blocks. It then passes through the gluten circulation machine 4 and is evenly and stably supplied to the cutting and winding station according to the set amount.

[0045] As we know, in the gluten processing process, the material selection process is the key link. Figure 3 、 Figure 4As shown in the figure, the gluten transfer machine 4 mainly consists of a feeding tray 41, a main shaft 42, and a compound motion drive system 43. The compound motion drive system 43 serves as the power core, converting power into lifting and rotating motion through a single-axis linkage dual-cam mechanism. The main shaft 42 provides support for the feeding tray 41 and assists in transmitting the lifting and rotating power. During the compound motion process, the feeding tray 41 intermittently transports the gluten to the cutting and winding station.

[0046] like Figure 5 、 Figure 6 As shown in , the composite motion drive system 43 mainly consists of a transmission shaft 431, a lifting drive cam mechanism 432, a reciprocating lifting mechanism 433, a rotary drive cam mechanism 434, and a reciprocating rotary transmission mechanism 435. Among them, the transmission shaft 431 is directly connected to an external power device (such as a direct drive motor or a reduction motor) as a power input source to introduce rotational power into the system. The lifting drive cam mechanism 432 is power-connected to the transmission shaft 431. When the transmission shaft 431 is running, the lifting drive cam mechanism 432 converts its rotational power into a linear driving force, driving the reciprocating lifting mechanism 433 to perform reciprocating linear motion. The rotary drive cam mechanism 434 is also power-connected to the transmission shaft 431. During the rotation of the transmission shaft 431, the rotary drive cam mechanism 434 converts the rotational power into a rotary driving force, driving the reciprocating rotary transmission mechanism 435 to perform rotary motion. The reciprocating lifting mechanism 433 and the reciprocating rotary transmission mechanism 435 are simultaneously connected to the main shaft 431, so that the material-dispensing plate 41 can synchronously realize the composite motion of reciprocating up and down displacement and reciprocating rotation.

[0047] like Figure 7As shown in , it can be seen that the lifting drive cam mechanism 432 includes a lifting drive cam 4321 and a lifting drive follower 4322. The design body of the reciprocating lifting mechanism 433 is a reciprocating lifting drive swing arm 4331. One end of the reciprocating lifting drive swing arm 4331 forms a rotating pair with the machine 1 through a pivot, and the other end is provided with a pushing top portion that contacts the main shaft 431, and serves as an installation carrier for the lifting drive follower 4322. The lifting drive follower 4322 forms a rolling contact pair with the contour curve of the lifting drive cam 4321. In actual operation, the transmission shaft 431 is directly connected to the external power source, and the rotational power is introduced into the compound motion drive system 43. The lifting drive cam mechanism 432 is fixedly connected to the transmission shaft 431. When the transmission shaft 431 rotates, the lifting drive cam 4321 rotates accordingly, and the cam profile curve is used to push the lifting drive follower 4322 to move, thereby driving the reciprocating lifting drive swing arm 4331 to achieve eccentric reciprocating motion. The pushing top part at the end of the swing arm 4331 is in rigid contact to accurately transmit the displacement and thrust generated by the eccentricity to the main shaft 431, directly driving the main shaft 431 to generate reciprocating lifting motion along the axial direction, so that the main shaft 431 drives the material diverter plate 41 mounted thereon to achieve synchronous up and down displacement.

[0048] like Figure 8 、 Figure 9 As shown in FIG, the rotary drive cam mechanism 434 includes a rotary drive cam 4341 and a rotary drive follower 4342. The reciprocating transmission mechanism 435 includes a reciprocating drive swing arm 4351, a transmission connecting rod unit 4352, and a reciprocating driven swing arm 4353. One end of the reciprocating drive swing arm 4353 forms a rotational pair with the machine platform 1 via a pivot, and the other end is hinged to the transmission connecting rod unit 4352. The rotary drive follower 4342 is mounted in the middle of the reciprocating drive swing arm 4353 and forms a rolling contact pair with the contour curve of the rotary drive cam 4341. A separable side push contact pair is formed between the transmission connecting rod unit 4352 and the reciprocating driven swing arm 4353. The reciprocating driven swing arm 4353 is fixedly connected to the main shaft 42 and rotates synchronously with the main shaft 42. In actual operation, when the drive shaft 431 rotates circumferentially, the fixedly connected rotary drive cam 4341 rotates synchronously, thereby driving the rotary drive follower 4342. As the rotary drive cam 4341 continues to rotate, its profile changes periodically. Because one end of the reciprocating rotary drive swing arm 4353 is pivotally connected to the machine 1, it swings about the pivot, thereby changing the motion of the drive link unit 4352. The drive link unit 4352 transmits force to the reciprocating rotary follower swing arm 4353 through a side thrust contact pair, allowing the main shaft 42 to drive the material diverter 41 to achieve reciprocating motion.

[0049] The operating principle of the composite motion drive system 43 is generally as follows: a single drive shaft 431 serves as the power source, and is linked to a lifting drive cam mechanism 432 and a rotary drive cam mechanism 434. Specifically, as the drive shaft 431 rotates, it synchronously drives the lifting drive cam 4321 and the rotary drive cam 4341 to rotate. The cam profiles of the two cams convert rotational motion into linear reciprocating motion and rotary reciprocating motion, respectively, according to specific patterns. The lifting drive cam 4321, via its profile, pushes the lifting drive follower 4322, which, through the reciprocating lifting drive swing arm 4331 and other transmission components, achieves the up and down displacement of the material diverter 41. The rotary drive cam 4341, by driving the rotary drive follower 4342, transmits power to the reciprocating rotary driven swing arm 4353, driving the material diverter 41 into rotation.

[0050] By adopting the above-mentioned technical solution, on the one hand, the up and down displacement and rotational motion of the material disc 41 are precisely coordinated, and the power loss is greatly reduced, thereby improving the operating stability and reliability of the compound motion drive system of the material disc 41; on the other hand, the rotational motion of the transmission shaft 431 is accurately converted into the compound motion of the material disc 41, thereby significantly improving the power conversion efficiency and motion control accuracy, ensuring that the material disc 41 always maintains stable and precise reciprocating up and down displacement and rotational motion during long-term continuous operation.

[0051] It is also important to emphasize here that in actual applications, by flexibly adjusting the contour curves and transmission parameters of the lifting drive cam 4321 and the rotary drive cam rotation 4341, the motion trajectory and speed of the material disc 41 can quickly respond to the production needs of gluten products with different specifications and process requirements. Whether it is conventional gluten products or new special-shaped products, the winding operation can be completed efficiently, which can provide strong support for the flexible upgrade of the gluten product production line.

[0052] like Figure 8 、 Figure 9As shown in , as one preferred design, the transmission link unit 4352 includes a connecting plate assembly 43521, a first connecting rod 43522, a second connecting rod 43523, a third connecting rod 43524, and a side thrust piece 43525, which are hinged in sequence. The connecting plate assembly 43521 is hinged to the reciprocating drive swing arm 4353 to form a revolving pair. The side thrust piece 43525 is used to directly push the reciprocating driven swing arm 4353 and is hinged to the machine 1 to form a revolving pair. The free end of the reciprocating driven swing arm 4353 is provided with a load-bearing column 43531 for the side thrust piece 43525 to perform lateral pushing. The transmission link unit 4352, through a multi-link hinge structure, converts the yaw motion of the reciprocating drive swing arm 4351 into a linear pushing force for the side thrust piece 43525, thereby achieving motion direction conversion and power transmission. In actual operation, when the reciprocating rotary driving swing arm 4353 swings, the connecting plate assembly 43521 hinged to it moves synchronously, driving the first connecting rod 43522, the second connecting rod 43523, and the third connecting rod 43524 to transmit movement in turn, and finally pushing the side pusher 43525 to swing with the hinge point of the machine 1 as the fulcrum, and the load-bearing column 43531 pushes the reciprocating rotary driven swing arm 4353 laterally, so that the main shaft 42 can complete the reciprocating rotary motion.

[0053] Likewise Figure 8 、 Figure 9 As shown in , the transmission link unit 4352 is further equipped with an auxiliary support unit 43526. The auxiliary support unit 43526 is primarily composed of a mounting seat 435261, rollers 435262, and a load-bearing rail 435263. The mounting seat 435261 is mounted on the side thrust member 43525 and serves as a mounting base for the rollers 435262. The load-bearing rail 435263 is fixedly mounted on the machine 1 and forms a rolling contact pair with the rollers 435262. As the side thrust member 43525 performs a yaw motion, the rollers 435262 roll along the load-bearing rail 435263. In this way, on the one hand, when the side thrust member 43525 performs the yaw motion, the lateral force during the motion is dispersed to the machine 1 through multi-point support, and the auxiliary support unit 43526 itself also shares part of the force, thereby effectively suppressing the shaking and deviation of the side thrust member 43525, thereby ensuring the stable operation of the transmission connecting rod unit 4352; on the other hand, the load-bearing rail 435263 provides a precise motion guide path for the roller 435262, ensuring that the side thrust member 43525 yaws along the predetermined trajectory, avoiding the occurrence of position deviation due to excessive freedom of motion.

[0054] As Figure 3As shown in , the compound motion drive system 43 is also equipped with an elastic reset unit 436. The elastic reset unit 436 includes a plurality of tension springs 4361 that are evenly distributed circumferentially around the central axis of the material tapping disc 41 and connected between the material tapping disc 41 and the machine 1. According to design experience, the elastic modulus of the tension spring 4361 should preferably be 180 to 200 GPa, and the yield strength should not be less than 1500 MPa. When the material tapping disc 41 performs a compound motion under the drive of the lifting drive cam mechanism 432 and the rotary drive cam mechanism 434, the tension spring 4361 is stretched and deformed with the compound motion of the material tapping disc 41, and the elastic potential energy is also accumulated synchronously. After the motion is completed, under the action of the elastic restoring force of the tension spring 4361, the material tapping disc 41 is pulled back to the initial position, thereby completing the reset action.

[0055] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A composite motion drive system for a material-digging disc, wherein the material-digging disc is mounted on a main shaft, characterized in that: include: The drive shaft, serving as the power input source; A lifting drive cam mechanism is connected to the transmission shaft power and is used to convert the power transmitted by the transmission shaft into a driving force for driving the reciprocating lifting mechanism; a rotary drive cam mechanism, connected to the power of the transmission shaft, for converting the power transmitted by the transmission shaft into a driving force for driving the reciprocating rotary transmission mechanism; The reciprocating lifting mechanism and the reciprocating rotary transmission mechanism are both connected to the main shaft, so that the material-dispensing plate can synchronously perform a composite motion of reciprocating up and down displacement and reciprocating rotation.

2. The compound motion driving system of the feeding plate according to claim 1, characterized in that: The lifting drive cam mechanism includes a lifting drive cam and a lifting drive follower; The lifting drive cam is fixedly connected to the transmission shaft and rotates synchronously; The reciprocating lifting mechanism includes a reciprocating lifting drive swing arm; One end of the reciprocating lifting drive swing arm forms a rotating pair with the machine platform through a pivot, and the other end is provided with a pushing portion that contacts the main shaft and serves as a mounting carrier for the lifting drive follower; the lifting drive follower forms a rolling contact pair with the contour curve of the lifting drive cam; The rotational motion of the lifting drive cam is converted into the yaw motion of the reciprocating lifting drive swing arm, and is converted into the reciprocating up and down displacement motion of the main shaft through the pushing part.

3. The compound motion driving system of the feeding plate according to claim 2, characterized in that: The lifting drive follower is a roller follower; the outer peripheral surface of the lifting drive follower forms a rolling contact with the contour curve of the lifting drive cam.

4. The compound motion driving system of the feeding plate according to claim 1, characterized in that: The rotary drive cam mechanism includes a rotary drive cam and a rotary drive follower; The rotary drive cam is fixedly connected to the transmission shaft and rotates synchronously; The reciprocating rotation transmission mechanism includes a reciprocating rotation driving swing arm, a transmission connecting rod unit and a reciprocating rotation driven swing arm; One end of the reciprocating rotary drive swing arm forms a rotating pair with the machine platform through a pivot, and the other end is hinged to the transmission connecting rod unit; The rotary drive follower is installed at the middle position of the reciprocating rotary drive swing arm and forms a rolling contact pair with the contour curve of the rotary drive cam; A separable side-pushing contact pair is formed between the transmission connecting rod unit and the reciprocating driven swing arm; The reciprocating driven swing arm is fixedly connected to the main shaft and rotates synchronously with the main shaft.

5. The compound motion driving system of the material digging plate according to claim 4, characterized in that: The transmission connecting rod unit includes a connecting plate assembly, a first connecting rod, a second connecting rod, a third connecting rod and a side thrust piece that are hinged in sequence; the connecting plate assembly is hinged to the reciprocating driving swing arm to form a rotating pair; the side thrust piece is used to directly push the reciprocating driven swing arm, and it is hinged to the machine table to form a rotating pair.

6. The compound motion driving system of the feeding plate according to claim 5, characterized in that: The transmission connecting rod unit also includes an auxiliary support unit; the auxiliary support unit includes a mounting seat, a roller and a load-bearing rail; the mounting seat is mounted on the side thrust member and serves as the mounting base of the roller; the load-bearing rail is fixedly installed on the machine and forms a rolling contact pair with the roller; when the side thrust member performs the yaw motion, the roller rolls along the load-bearing rail.

7. The compound motion driving system of the feeding plate according to claim 4, characterized in that: The rotary drive follower is a roller follower; the outer peripheral surface of the rotary drive follower forms a rolling contact with the contour curve of the rotary drive cam.

8. The compound motion driving system of the feeding plate according to any one of claims 1 to 7, characterized in that: It also includes an elastic reset unit; the elastic reset unit includes at least three tension springs evenly distributed in the circumference and connected between the material diverter disc and the machine table.

9. The compound motion driving system of the feeding plate according to claim 8, characterized in that: The elastic modulus of the tension spring is 180-200 GPa, and the yield strength is not less than 1500 MPa.

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