Transmission fitting type alternate action bionic chewing device and simulation test method thereof

Abstract

The application relates to the field of chewing test technology, in particular to a transmission cooperation type alternate action bionic chewing device and a simulation test method thereof, which comprises a support frame, a processing tank and a fixing plate arranged on the support frame, and a feeding inlet formed in the processing tank; a pushing assembly is symmetrically arranged on the fixing plate, and a push plate is connected to the pushing assembly; an elastic supporting mechanism is arranged on the push plate, a supporting rod is connected to the elastic supporting mechanism, a chewing mechanism is arranged on the supporting rod, a first meshing plate and a second meshing plate which are in cooperation with each other are connected to the chewing mechanism; a translation assembly is arranged on the chewing mechanism, and a yawing mechanism is further arranged on the chewing mechanism; when the chewing mechanism moves, the translation assembly can control the first meshing plate and the second meshing plate to perform a reciprocating yawing action through the yawing mechanism, so that the uniformity of material chewing is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of chewing test technology, and in particular to a transmission matching type alternate action bionic chewing device and a simulation test method thereof. BACKGROUND

[0002] In vitro simulated digestion is a key research method in the fields of food science, nutrition and pharmaceutical research, aiming to reproduce the physical, chemical and biological processes of the human digestive tract through a controllable laboratory system to evaluate the nutritional release characteristics of food, the bioavailability of active ingredients, the dissolution behavior of drugs and the digestion characteristics of materials, etc.

[0003] A complete in vitro simulated digestion system usually includes three core stages: the oral stage (bionic chewing and saliva mixing), the stomach stage (acidic environment and enzymatic digestion), and the intestinal stage (alkaline environment and further absorption).

[0004] Among them, the bionic chewing in the oral stage is the starting and key link of the whole digestion process, which not only chews large food into easy-to-swallow bolus through mechanical force, but also changes the particle size of food, increases its specific surface area, and promotes the preliminary mixing with saliva enzymes during the chewing process. These changes in physical and chemical states directly affect the digestion efficiency and release kinetics of nutrients in the subsequent stomach and intestinal stages.

[0005] At present, the bionic chewing device for in vitro simulated digestion in the prior art usually controls two special-shaped plates to move reciprocally towards each other to provide axial extrusion chewing effect to the material. However, this way produces single and fixed mechanical action, and the chewing process is high-speed, high-strength rigid impact or shear, which cannot simulate the gradual pressure, holding and release biomechanical properties of the human jaw closure during the chewing process, and it is difficult to simulate the horizontal friction and grinding action between the teeth themselves, which is easy to cause dead angle in sample chewing, thereby affecting the authenticity of subsequent digestion simulation. SUMMARY

[0006] The purpose of the present application is to provide a transmission matching type alternate action bionic chewing device and a simulation test method thereof to solve the problems raised in the background art.

[0007] To achieve the above purpose, the present application provides the following technical solutions:

[0008] A transmission matching type alternate action bionic chewing device, comprising:

[0009] a support frame, a treatment tank and a fixed plate arranged on the support frame, and a feeding inlet formed in the treatment tank;

[0010] Further comprising:

[0011] Pushing assembly, symmetrically arranged on the fixed plate, a push plate being connected to the pushing assembly;

[0012] Elastic supporting mechanism, arranged on the push plate, a supporting rod being connected to the elastic supporting mechanism, a chewing mechanism being arranged on the supporting rod, a first engaging plate and a second engaging plate being connected to the chewing mechanism, the elastic supporting mechanism being capable of controlling the first engaging plate and the second engaging plate to move towards each other through the supporting rod and the chewing mechanism;

[0013] Translation assembly, arranged on the chewing mechanism, a yawing mechanism being further arranged on the chewing mechanism, the translation assembly being capable of controlling the first engaging plate and the second engaging plate to perform reciprocating yawing action through the yawing mechanism when the chewing mechanism moves.

[0014] As a further scheme of the present application, the pushing assembly comprises a fixed rod arranged on the fixed plate, a sliding sleeve being axially slid on the fixed rod, the sliding sleeve being fixedly connected to the push plate, a gas cylinder being further arranged on the fixed plate and fixedly connected to the push plate.

[0015] As a further scheme of the present application, the elastic supporting mechanism comprises a supporting sleeve arranged on the push plate, a movable rod being axially slid in the supporting sleeve, a connecting block being arranged at the end of the movable rod, the connecting block being fixedly connected to the supporting rod.

[0016] As a further scheme of the present application, the elastic supporting mechanism further comprises a clamping groove formed on the circumferential outer wall of the supporting sleeve, a protrusion being arranged on the movable rod and slidably fitted in the clamping groove, a spring being sleeved on the supporting sleeve and the movable rod, the two ends of the spring being abutted against the push plate and the connecting block respectively.

[0017] As a further scheme of the present application, the chewing mechanism comprises a movable sleeve being axially slid along the supporting rod, a receiving plate being arranged on the movable sleeve, a rotating rod being rotatably installed on the receiving plate, a yawing rod being arranged on the rotating rod, the yawing rod being fixedly connected to the first engaging plate and the second engaging plate.

[0018] As a further scheme of the present application, the translation assembly comprises a follower plate arranged on the movable sleeve, a corrugated groove being formed on the follower plate, a second limiting column being arranged on the push plate and slidably fitted in the corrugated groove.

[0019] As a further scheme of the present application, the yawing mechanism comprises a helical groove being formed on the circumferential outer wall of the rotating rod and symmetrically arranged, a follower sleeve being axially slid on the rotating rod, a limiting block being arranged on the inner wall of the follower sleeve and slidably fitted in the helical groove.

[0020] The guiding assembly and the guiding assembly are arranged on the receiving plate and connected with the follow-up sleeve.

[0021] As a further scheme of the present application, the guiding assembly comprises a guiding column arranged on the receiving plate, the guiding column is axially slidably connected with a guiding plate fixedly connected with the follow-up sleeve, and a first limiting column is arranged on the guiding plate.

[0022] As a further scheme of the present application, the guiding assembly comprises a limiting plate arranged on the supporting rod, an inclined slot is formed in the limiting plate, and the inclined slot is slidably embedded with the first limiting column.

[0023] A simulation test method of a transmission matching type alternate action bionic chewing device, comprising the following steps:

[0024] Step one: adding the material to be processed into the processing tank through the feeding port;

[0025] Step two: under the action of the pushing assembly, the pushing plate is driven to move, and the elastic supporting mechanism is driven to move;

[0026] Step three: the elastic supporting mechanism also drives the chewing mechanism to move through the supporting rod, so that the first engaging plate and the second engaging plate move towards each other;

[0027] Step four: when the distance between the first engaging plate and the second engaging plate reaches the minimum, under the action of the elastic supporting mechanism, the distance between the pushing plate and the supporting rod is reduced, so as to drive the translation assembly to move, and under the action of the yawing mechanism, the first engaging plate and the second engaging plate perform the reciprocating yawing action.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] The present application reproduces the biomechanics of bionic chewing by progressive pressure application. In the initial stage, the first engaging plate and the second engaging plate can be controlled to move quickly to realize the rapid closing and gathering of the material. When the material is gathered, the continuous pushing of the air cylinder is converted into further compression of the spring, so that the pressure applied to the material increases nonlinearly with displacement, realizing the process that the human chewing muscle contracts with the decrease of the closing angle of the lower jaw. In multiple chewing cycles, the device can dynamically adjust the actual force applied in each occlusion according to the resistance change of the material due to chewing, thereby truly simulating the physiological mechanism that the oral cavity adjusts the occlusion force according to the feedback of food texture.

[0030] Through the cooperation of the translation assembly and the elastic support mechanism, the linear motion of the push plate can be converted into the horizontal reciprocating interlacing of the first meshing plate and the second meshing plate along the axis of the support rod. This horizontal interlacing motion accurately simulates the horizontal friction and grinding action of the upper and lower teeth when the jaws are closed in the real chewing process, thereby providing shear stress and friction effect to the material.

[0031] Through the cooperation of the translation assembly and the elastic support mechanism, the linear motion of the push plate can be converted into the horizontal reciprocating interlacing of the first meshing plate and the second meshing plate along the axis of the support rod. This horizontal interlacing motion accurately simulates the horizontal friction and grinding action of the upper and lower teeth when the jaws are closed in the real chewing process, thereby providing shear stress and friction effect to the material. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 Structure diagram of an embodiment of the transmission and cooperation type alternate action bionic chewing device.

[0033] Figure 2 Structure diagram of another angle of an embodiment of the transmission and cooperation type alternate action bionic chewing device.

[0034] Figure 3 Structure diagram of the push assembly, processing tank, and storage tank in an embodiment of the transmission and cooperation type alternate action bionic chewing device.

[0035] Figure 4 Structure diagram of the push assembly and processing tank in an embodiment of the transmission and cooperation type alternate action bionic chewing device.

[0036] Figure 5 Structure diagram of the processing tank in an embodiment of the transmission and cooperation type alternate action bionic chewing device.

[0037] Figure 6 Connection relationship diagram of the push assembly, elastic support mechanism, chewing mechanism, translation assembly, and part of the deflection mechanism in an embodiment of the transmission and cooperation type alternate action bionic chewing device.

[0038] Figure 7 Structure diagram of the push assembly in an embodiment of the transmission and cooperation type alternate action bionic chewing device. Figure 6 Structure diagram of the push assembly in an embodiment of the transmission and cooperation type alternate action bionic chewing device.

[0039] Figure 8This is a schematic diagram of the structure of the pushing component, elastic support mechanism, translation component, and partial oscillation mechanism in one embodiment of a biomimetic chewing device with alternating transmission and engagement.

[0040] Figure 9 This is a schematic diagram of the structure of the elastic support mechanism, translation component, partial oscillation mechanism, and chewing mechanism in one embodiment of a biomimetic chewing device with alternating transmission and coordination.

[0041] Figure 10 This is an exploded structural diagram of the elastic support mechanism and translation component in one embodiment of a biomimetic chewing device with alternating transmission and engagement.

[0042] Figure 11 This is an exploded structural diagram of the chewing mechanism and the oscillating mechanism in one embodiment of a biomimetic chewing device with alternating transmission and engagement.

[0043] In the diagram: 1. Support frame; 2. Processing tank; 201. Inlet; 3. Absorption pump; 4. Absorption pipe; 5. Collection tank; 6. First feed pipe; 7. Second feed pipe; 8. Fixing plate; 9. Cylinder; 10. Fixing rod; 11. Sliding sleeve; 12. Push plate; 13. Support sleeve; 1301. Slot; 14. Movable rod; 1401. Protrusion; 15. Spring; 16. Connecting block; 17. Support 18. Rod; 19. Movable sleeve; 20. Receiving plate; 20. Rotating rod; 2001. Spiral groove; 21. Deflecting rod; 22. First meshing plate; 23. Second meshing plate; 24. Guide post; 25. Guide plate; 26. Follower sleeve; 2601. Limiting block; 27. First limiting post; 28. Limiting plate; 2801. Inclined groove; 29. ​​Follower plate; 2901. Corrugated groove; 30. Second limiting post. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0046] Please seeFigures 1 to 11 The embodiment of the present application is a transmission matching type alternating action bionic chewing device, comprising:

[0047] A support frame 1, a processing tank 2 and a fixing plate 8 arranged on the support frame 1, the processing tank 2 is internally formed with a feeding port 201;

[0048] Further comprising:

[0049] A pushing assembly symmetrically arranged on the fixing plate 8, a push plate 12 connected to the pushing assembly;

[0050] An elastic supporting mechanism arranged on the push plate 12, a supporting rod 17 connected to the elastic supporting mechanism, a chewing mechanism arranged on the supporting rod 17, a first engaging plate 22 and a second engaging plate 23 connected to the chewing mechanism, the elastic supporting mechanism being capable of controlling the first engaging plate 22 and the second engaging plate 23 to move towards each other through the supporting rod 17 and the chewing mechanism;

[0051] A translation assembly arranged on the chewing mechanism, the chewing mechanism further being provided with a yawing mechanism, the translation assembly being capable of controlling the first engaging plate 22 and the second engaging plate 23 to perform reciprocating yawing action through the yawing mechanism when the chewing mechanism moves.

[0052] Specifically, the support frame 1 is provided with an absorption pump 3, the absorption pump 3 is connected with an absorption pipe 4 connected with the processing tank 2 and a storage tank 5, the support frame 1 is further provided with a first feeding pipe 6 and a second feeding pipe 7, under the action of the first feeding pipe 6 and the second feeding pipe 7, the to-be-chewed material can be added into the processing tank 2 through the feeding port 201, when the material is subjected to chewing test, in order to add the to-be-tested material into the processing tank 2 for bionic chewing processing, when the material is added into the processing tank 2 and located between the first engaging plate 22 and the second engaging plate 23, the pushing assembly acts to drive the push plate 12 to move, thereby driving the elastic supporting mechanism to move, the elastic supporting mechanism further drives the supporting rod 17 to move, and controls the first engaging plate 22 and the second engaging plate 23 to move towards each other through the chewing mechanism, until the first engaging plate 22 and the second engaging plate 23 complete extrusion of the material, at this time, the supporting rod 17 no longer moves, under the action of the pushing assembly, the push plate 12 continues to move, thereby controlling the chewing mechanism to perform horizontal reciprocating translation through the translation assembly, so as to increase the shear force provided by the first engaging plate 22 and the second engaging plate 23 to the material, at the same time, the translation assembly drives the regulating mechanism to move through the chewing mechanism, so that the first engaging plate 22 and the second engaging plate 23 perform reciprocating yawing action, so as to ensure that the material does not stay in a dead angle when subjected to bionic chewing, after the chewing is completed, the material subjected to bionic chewing is transported into the storage tank 5 for detection through the absorption pipe 4 under the action of the absorption pump 3.

[0053] Please refer to Figures 1 to 6 , Figures 8 to 10 , the pushing assembly comprises a fixed rod 10 arranged on the fixed plate 8, the fixed rod 10 is axially slidably sleeved with a sliding sleeve 11, the sliding sleeve 11 is fixedly connected with the push plate 12, and the fixed plate 8 is further provided with a pneumatic cylinder 9 fixedly connected with the push plate 12.

[0054] Please refer to Figures 5 to 10 , the elastic supporting mechanism comprises a supporting sleeve 13 arranged on the push plate 12, the supporting sleeve 13 is axially slidably sleeved with a movable rod 14, the movable rod 14 is provided with a connecting block 16 at the end, the connecting block 16 is fixedly connected with the supporting rod 17, the elastic supporting mechanism further comprises a clamping groove 1301 formed in the circumferential outer wall of the supporting sleeve 13, the movable rod 14 is provided with a protrusion 1401 which is slidably embedded in the clamping groove 1301, and the supporting sleeve 13 and the movable rod 14 are sleeved with a spring 15, and the two ends of the spring 15 are respectively abutted with the push plate 12 and the connecting block 16.

[0055] Please refer to Figures 5 to 11 , the chewing mechanism comprises a movable sleeve 18 axially slidably sleeved along the supporting rod 17, the movable sleeve 18 is provided with a receiving plate 19, the receiving plate 19 is rotatably installed with a rotating rod 20, the rotating rod 20 is provided with a deflection rod 21, and the deflection rod 21 is fixedly connected with the first engaging plate 22 and the second engaging plate 23.

[0056] Please refer to Figure 6 , in detail, an electric control valve is arranged at the feeding inlet 201, so that the feeding inlet 201 can be controlled to be opened during feeding and closed after feeding is completed, the first engaging plate 22 and the second engaging plate 23 are arranged in a wave shape, and the arc size of the first engaging plate 22 protruding towards the center of the second engaging plate 23 is smaller than the arc size of the corresponding second engaging plate 23 recessed towards the center of the first engaging plate 22, and vice versa, the arc size of the second engaging plate 23 protruding towards the two sides of the first engaging plate 22 is smaller than the arc size of the first engaging plate 22 recessed towards the two sides of the second engaging plate 23, and therefore, the first engaging plate 22 and the second engaging plate 23 cannot completely coincide with each other when they are mutually adhered, and the electric control valve is an application of the prior art, which will not be described herein.

[0057] Please refer to Figure 8, initial state, under the action of the cylinder 9, so that the push plate 12 is located in the direction of the fixed plate 8 end of stroke, at this time, the movable rod 14 is located in the end of stroke outside the support sleeve 13, so that the maximum spacing between the connecting block 16 and the push plate 12, and the elongation of the spring 15 in the natural state is greater than the maximum spacing between the connecting block 16 and the push plate 12, for this, the spring 15 is in precompression state, and always provides a push force to the connecting block 16 towards the direction away from the push plate 12, so that the protrusion 1401 is located in the end of stroke on the side of the push plate 12 away from the fixed plate 8, because the spacing between the push plate 12 and the fixed plate 8 is minimum, for this, the spacing between the first engagement plate 22 and the second engagement plate 23 is maximum;

[0058] When the need to simulate the chewing, the material to be simulated chewing can be transported into the inlet 201 through the first feeding pipe 6 and the second feeding pipe 7, and after the feeding is completed, the inlet 201 is blocked by the electric control valve, at this time, the piston rod of the cylinder 9 is extended, and the push plate 12 fixedly connected with it is moved along the fixed rod 10 in the direction away from the fixed plate 8, and the push plate 12 drives the support sleeve 13 fixedly connected with it to move synchronously;

[0059] In the initial stage of movement, because the precompression force of the spring 15 acts on the support rod 17 through the connecting block 16, and the material has not been clamped, the first engagement plate 22 and the second engagement plate 23 are in free state, so the support rod 17 and the support sleeve 13 keep relative static, which makes the precompression force of the spring 15 drive the support rod 17 to move synchronously, so as to drive the first engagement plate 22 and the second engagement plate 23 to quickly close to each other, and gather and initially contact the scattered material between them, so as to simulate the closing action of the lower jaw in the initial stage of chewing, and quickly position the food to the interdental occlusion area;

[0060] When the first engagement plate 22 and the second engagement plate 23 preliminarily clamp the material, they cannot continue to move towards each other due to the resistance of the material, at this time, the push plate 12 continues to move under the continuous pushing of the cylinder 9, and the support rod 17 moves slowly due to resistance, therefore, the size of the support sleeve 13 and the movable rod 14 increases, the protrusion 1401 slides along the radial direction of the card slot 1301, that is, the spacing between the push plate 12 and the support rod 17 decreases, and the push plate 12 will compress the spring 15, so that the elastic potential energy stored in the spring 15 increases sharply, and the reaction force of the spring 15 is transmitted to the push force of the connecting block 16, which increases nonlinearly, and the increased push force is transmitted through the support rod 17, and finally converted into the static extrusion force of the first engagement plate 22 and the second engagement plate 23 on the clamped material, so as to simulate the biomechanics of gradually increasing occlusal force during chewing, and through the stroke control of the cylinder 9, different intensity levels of occlusal force can also be accurately set and simulated, so as to ensure the accuracy and quantifiability of the subsequent simulation test results.

[0061] When the push plate 12 is driven by the cylinder 9 to move to the preset end of stroke and remains for a short time, the cylinder 9 resets the push plate 12, so that the first engagement plate 22 and the second engagement plate 23 are separated, and when the first engagement plate 22 and the second engagement plate 23 return to the initial position, it indicates that one bionic chewing action is completed. Through the control of the cylinder 9 for multiple reciprocating cycles, the continuous multiple chewing actions can be simulated. In the subsequent cycles, since the material has been chewed or deformed in the first extrusion, the resistance may change, but the elastic self-adaptive characteristics of the spring 15 can ensure that each bite can still apply corresponding pressure according to the real-time resistance, thereby dynamically simulating the effect of self-adaptive adjustment of the biting force according to the chewing degree of the food in the real situation. When the bionic chewing simulation is completed, the material after chewing can be controlled to enter the storage tank 5 through the suction pump 3 and the suction pipe 4, and the final chewing effect can be detected.

[0062] Please refer to Figures 5 to 10 , the translation assembly includes a follower plate 29 arranged on the movable sleeve 18, and a corrugated groove 2901 is formed on the follower plate 29, and a second limiting column 30 is arranged on the push plate 12 and is slidably embedded in the corrugated groove 2901.

[0063] Please refer to Figures 5 to 11 , the deflection mechanism includes a spiral groove 2001 formed on the circumferential outer wall of the rotating rod 20 and symmetrically arranged, and a follower sleeve 26 is axially slid on the rotating rod 20, and a limiting block 2601 is arranged on the inner wall of the follower sleeve 26 and is slidably embedded in the spiral groove 2001; further including a guide assembly and a guide assembly arranged on the receiving plate 19 and connected with the follower sleeve 26, the guide assembly includes a guide column 24 arranged on the receiving plate 19, and a guide plate 25 fixedly connected with the follower sleeve 26 is axially slid on the guide column 24, and a first limiting column 27 is arranged on the guide plate 25, and the guide assembly includes a limiting plate 28 arranged on the support rod 17, and a inclined groove 2801 is formed on the limiting plate 28, and the inclined groove 2801 is slidably embedded in the first limiting column 27.

[0064] Please refer to Figure 9Further, the corrugated groove 2901 is arranged in a wave shape. In the initial state, the spring 15 is in the pre-compressed state, the spacing between the connecting block 16 and the push plate 12 is maximum, at this time, the spacing between the follower plate 29 arranged on the movable sleeve 18 and the push plate 12 is also maximum, the second limiting column 30 is located at the end of the stroke on one side of the corrugated groove 2901, under the action of the second limiting column 30 and the corrugated groove 2901, the movable sleeve 18 is controlled to be located at the center position of the supporting rod 17 through the follower plate 29, in this state, the movable sleeve 18 also controls the receiving plate 19 to be located at the center position of the supporting rod 17, so that the first limiting column 27 is located at the center position of the inclined groove 2801, under the action of the first limiting column 27 and the inclined groove 2801, the limiting block 2601 is controlled to be located at the center position of the spiral groove 2001 through the guide plate 25 and the follower sleeve 26, under the action of the limiting block 2601 and the spiral groove 2001, the swing rod 21 is controlled to be perpendicular to the supporting rod 17 through the rotating rod 20, so that the vertical center reference planes of the first engaging plate 22 and the second engaging plate 23 are parallel to each other.

[0065] When it is necessary to simulate chewing of the material, the cylinder 9 drives the push plate 12 to move, so as to control the first engaging plate 22 and the second engaging plate 23 to move towards each other, when the first engaging plate 22 and the second engaging plate 23 preliminarily clamp the material, the first engaging plate 22 and the second engaging plate 23 no longer move synchronously with the push plate 12, the position of the supporting rod 17 is temporarily kept stable, at this time, the push plate 12 continues to move forward under the continuous driving of the cylinder 9, the relative distance between the supporting rod 17 and the push plate 12 continuously decreases, the push plate 12 also drives the second limiting column 30 to slide along the track of the corrugated groove 2901, this sliding converts the linear motion of the push plate 12 into the reciprocating translation of the follower plate 29 and the movable sleeve 18 along the axis of the supporting rod 17, so as to drive the first engaging plate 22 and the second engaging plate 23 to move horizontally and staggered.

[0066] In this way, since the first engaging plate 22 and the second engaging plate 23 are not completely coincident, in the translation process, the first engaging plate 22 and the second engaging plate 23 can continuously apply vertical direction compressive stress to the material, and also provide horizontal direction friction, this horizontal and staggered motion accurately simulates the horizontal friction and grinding action generated by the upper and lower jaw teeth when the jaw is closed in the real chewing process, so as to provide shear stress and friction effect to the material.

[0067] Meanwhile, the activity sleeve 18 synchronously drives the receiving plate 19 to move, thereby controlling the first limiting column 27 to slide along the inclined groove 2801 through the guide column 24 and the guide plate 25, and under the action of the first limiting column 27 and the inclined groove 2801, the guide plate 25 reciprocally slides along the axial direction of the guide column 24, and the guide plate 25 also controls the limiting block 2601 to reciprocally slide along the track of the spiral groove 2001 through the follow-up sleeve 26, the axial sliding of the follow-up sleeve 26 is forcibly converted into the reciprocating rotary motion of the rotary rod 20 around its own axis by the helix angle of the spiral groove 2001, and the rotary rod 20 controls the first meshing plate 22 and the second meshing plate 23 to perform the periodic opening and closing type swing action in the opposite direction through the swing rod 21, so that the dynamic contact surface conversion between the first meshing plate 22 and the second meshing plate 23 is formed, in this way, the material particles originally in the relatively static contact surface can be re-stirred and turned over, effectively avoiding the chewing dead angle or only being compacted instead of being chewed to death due to the fixed stress point, and the stirring and pushing effect of the tongue and the cheek on the food mass in the chewing is simulated, the mixing and redistribution of the material in the chewing area are promoted, the uniformity of the chewing is ensured, and thus the simulation degree and the chewing efficiency of the device are greatly enhanced.

[0068] A simulation test method of a transmission matching type alternating action bionic chewing device, comprising the following steps:

[0069] Step one: adding the material to be processed into the processing tank 2 through the feeding port 201;

[0070] Step two: driving the push plate 12 to move and driving the elastic support mechanism to move under the action of the pushing assembly;

[0071] Step three: the elastic support mechanism also drives the chewing mechanism to move through the support rod 17, so that the first meshing plate 22 and the second meshing plate 23 move towards each other;

[0072] Step four: when the distance between the first meshing plate 22 and the second meshing plate 23 reaches the minimum, the distance between the push plate 12 and the support rod 17 is reduced under the action of the elastic support mechanism, thereby driving the translation assembly to move, and under the action of the swing mechanism, the first meshing plate 22 and the second meshing plate 23 perform the reciprocating swing action.

[0073] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0074] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A transmission fit type alternate action bionic chewing device, comprising: a support frame, and a processing tank and a fixed plate arranged on the support frame, and an inlet is formed in the processing tank; characterized in that it further comprises: a pushing assembly symmetrically arranged on the fixed plate, and a push plate is connected to the pushing assembly; an elastic supporting mechanism arranged on the push plate, a supporting rod is connected to the elastic supporting mechanism, a chewing mechanism is arranged on the supporting rod, a first engaging plate and a second engaging plate are connected to the chewing mechanism, and the elastic supporting mechanism can control the first engaging plate and the second engaging plate to move towards each other through the supporting rod and the chewing mechanism; a translation assembly arranged on the chewing mechanism, and a yawing mechanism is further arranged on the chewing mechanism, and the translation assembly can control the first engaging plate and the second engaging plate to perform a reciprocating yawing action through the yawing mechanism when the chewing mechanism moves; the chewing mechanism comprises a movable sleeve sliding axially along the supporting rod, a receiving plate is arranged on the movable sleeve, a rotating rod is rotatably installed on the receiving plate, a yawing rod is arranged on the rotating rod, and the yawing rod is fixedly connected to the first engaging plate and the second engaging plate; the translation assembly comprises a follower plate arranged on the movable sleeve, a corrugated groove is formed in the follower plate, and a second limiting column is arranged on the push plate and slidably embedded in the corrugated groove; the yawing mechanism comprises symmetrical spiral grooves formed in the circumferential outer wall of the rotating rod, and a follower sleeve axially slides on the rotating rod, and a limiting block is arranged on the inner wall of the follower sleeve and slidably embedded in the spiral groove; and further comprising a guide assembly and a guide assembly arranged on the receiving plate and connected to the follower sleeve.

2. A transmission fitting type alternate action bionic chewing device according to claim 1, characterized in that, the pushing assembly comprises a fixed rod arranged on the fixed plate, a sliding sleeve axially slides on the fixed rod, the sliding sleeve is fixedly connected to the push plate, and a gas cylinder is further arranged on the fixed plate and fixedly connected to the push plate.

3. A transmission fitting type alternate action bionic chewing device according to claim 1, characterized in that, the elastic supporting mechanism comprises a supporting sleeve arranged on the push plate, an active rod axially slides in the supporting sleeve, a connecting block is arranged at the end of the active rod, and the connecting block is fixedly connected to the supporting rod.

4. A transmission fitting type alternate action bionic chewing device according to claim 3, characterized in that, the elastic supporting mechanism further comprises a clamping groove formed in the circumferential outer wall of the supporting sleeve, a protrusion is arranged on the active rod and slidably embedded in the clamping groove, a spring is sleeved on the supporting sleeve and the active rod, and the two ends of the spring abut against the push plate and the connecting block, respectively.

5. A transmission fitting type alternate action bionic chewing device according to claim 1, characterized in that, the guide assembly comprises a guide column arranged on the receiving plate, a guide plate fixedly connected to the follower sleeve axially slides on the guide column, and a first limiting column is arranged on the guide plate.

6. A transmission fitting type alternate action bionic chewing device according to claim 5, characterized in that, the guide assembly comprises a limiting plate arranged on the supporting rod, an inclined groove is formed in the limiting plate, and the first limiting column is slidably embedded in the inclined groove.

7. A method for simulating the operation of a transmission-matched, alternating action, bionic chewing device, using a transmission-matched, alternating action, bionic chewing device according to any one of claims 1 to 6, characterized in that comprising the following steps: step one: adding the material to be processed into the processing tank through the inlet; step two: driving the push plate to move and driving the elastic supporting mechanism to move under the action of the pushing assembly; Step three: the elastic support mechanism also drives the chewing mechanism to move through the support rod, so that the first engagement plate and the second engagement plate move towards each other; Step four: when the distance between the first engagement plate and the second engagement plate reaches the minimum, the distance between the push plate and the support rod is reduced under the action of the elastic support mechanism, thereby driving the translation assembly to move, and the first engagement plate and the second engagement plate perform reciprocating swing action under the action of the swing mechanism.

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