A linear reciprocating motion food cutting machine

Abstract

The present invention discloses a linear reciprocating motion food cutting machine, comprising a cutting machine body, a cutting mechanism arranged inside the cutting machine body, a reciprocating motion mechanism connected to the cutting mechanism, the reciprocating motion mechanism comprising a rotary drive mechanism, a crank, a connecting rod and a cross guide groove, the length of the connecting rod being twice the length of the crank, one end of the crank being connected to the output end of the rotary drive mechanism, the other end being connected to the midpoint of the connecting rod, the two ends of the connecting rod being rotatably connected to a first slider and a second slider respectively, the cutting mechanism being connected to the first slider, the first slider and the second slider both being limited in the cross guide groove, the cross guide groove comprising a transverse groove and a longitudinal groove intersecting vertically, when the rotary drive mechanism drives the crank to rotate, the first slider reciprocates along the transverse groove, and the second slider reciprocates along the longitudinal groove synchronously. The present invention designs a reciprocating motion mechanism, which has the advantage of compact structure, and can enable the cutting mechanism to realize stable reciprocating motion under the action of the reciprocating motion mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of food cutting equipment, in particular to a linear reciprocating motion type food cutting machine. Background Art

[0002] With the development of science and technology and the improvement of people's living standards, household appliances are becoming more and more popular. In traditional cooking, the processing of food ingredients is based on cutting and chopping with kitchen knives. This method is inefficient, the processed food ingredients are not uniform, and the labor is large, which can no longer meet people's needs. For this reason, there is a food cutter in the currently used electrical appliances, which is specially used for cutting or mincing food. The existing common linear cutting food processor converts circular motion into linear motion. The transmission method mainly includes cam connecting rod mechanism, crank connecting rod mechanism and gear combination motion to produce a linear trajectory. The linear motion part needs a slot to meet the linear reciprocating motion. If this slot part does not have a reliable sealing structure, it is easy for food residues to fall into it when cutting food. Therefore, the existing food cutter has the problems of poor sealing performance and unstable reciprocating motion. Summary of the invention

[0003] The object of the present invention is to provide a linear reciprocating motion type food cutter. The present invention designs a reciprocating motion mechanism, which has the advantage of compact structure, and under the action of the reciprocating motion mechanism, the cutting mechanism can achieve stable reciprocating motion.

[0004] The technical solution of the present invention is as follows: a linear reciprocating food cutter comprises a cutter body, a cutting mechanism is arranged inside the cutter body, the cutting mechanism is connected to a reciprocating mechanism, the reciprocating mechanism comprises a rotary drive mechanism, a crank, a connecting rod and a cross guide groove, the length of the connecting rod is twice the length of the crank, one end of the crank is connected to the output end of the rotary drive mechanism, and the other end is connected to the midpoint of the connecting rod, the two ends of the connecting rod are rotatably connected with a first slider and a second slider respectively, the cutting mechanism is connected to the first slider, the first slider and the second slider are both limited in the cross guide groove, the cross guide groove comprises a transverse groove and a longitudinal groove intersecting vertically, when the rotary drive mechanism drives the crank to rotate, the first slider reciprocates along the transverse groove, and the second slider reciprocates along the longitudinal groove synchronously.

[0005] Compared with the prior art, the beneficial effects of the present invention are embodied in: by connecting a reciprocating motion mechanism under the cutting mechanism, a reciprocating connecting rod assembly is provided between the reciprocating motion mechanism and the blade assembly, which is beneficial to improving the compactness of the overall structure; by setting the length of the connecting rod to twice the length of the crank, one end of the crank is connected to the output end of the rotary drive mechanism, and the other end is connected to the midpoint of the connecting rod, and the two ends of the connecting rod are respectively rotatably connected with a first slider and a second slider, the cutting mechanism is connected to the first slider, and the first slider and the second slider are both limited in the cross guide groove. When the rotary drive mechanism drives the crank to rotate, the first slider performs reciprocating motion, and the second slider performs reciprocating motion synchronously, which is beneficial to converting the circular motion output by the rotary drive mechanism into linear motion, so that the first slider can eventually drive the cutting mechanism to perform stable reciprocating motion.

[0006] In the aforementioned linear reciprocating motion food cutter, the first slider and the second slider are both in the shape of a cuboid, the connections between the four sides of the first slider and the second slider are transitioned by chamfers, and the perpendicular intersections of the transverse groove and the longitudinal groove are both arc surfaces.

[0007] In the aforementioned linear reciprocating motion food cutter, a limiting step for limiting the first slider and the second slider in the vertical direction is provided at the bottom of the cross guide groove.

[0008] In the aforementioned linear reciprocating motion food cutter, the top height of the first sliding block is higher than the slot height of the cross guide slot, and the top height of the second sliding block is lower than the slot height of the cross guide slot.

[0009] In the aforementioned linear reciprocating motion food cutter, the movement stroke of the first slider and the second slider is 4 times the length of the crank.

[0010] In the aforementioned linear reciprocating food cutter, the cutting mechanism includes a blade assembly and a reciprocating connecting rod assembly, the blade assembly includes a support limiter, a blade and a wear-resistant base, the support limiter is slidably connected to the wear-resistant base, and the blade is fixed to the support limiter; the reciprocating connecting rod assembly includes a connecting member fixedly connected to the first slider, and the connecting member is connected to a guide rod; the support limiter is provided with a buckle, and the guide rod is provided with a buckle groove, and the blade assembly and the reciprocating connecting rod assembly are connected by buckling the buckle into the buckle groove.

[0011] In the aforementioned linear reciprocating motion food cutter, the support and limit member is provided with a guide groove, and the wear-resistant base is provided with a guide rail.

[0012] In the aforementioned linear reciprocating motion food cutter, a partition is provided between the blade assembly and the reciprocating connecting rod assembly.

[0013] In the aforementioned linear reciprocating food cutter, the rotation drive mechanism includes a shaded pole motor and a differential gear box, the shaded pole motor is arranged at the lower end of the differential gear box, the differential gear box includes a planetary gear frame set, and the planetary gear frame set includes a sun gear and a fixed external tooth.

[0014] In the aforementioned linear reciprocating motion food cutter, the cutter body includes a shell, a food introduction channel is provided on the shell, a cooking bowl is provided below the output port of the food introduction channel, the blade assembly is located between the output port of the food introduction channel and the cooking bowl, and a push rod is inserted into the food channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure explosion of the present invention;

[0016] Figure 2 It is a schematic structural diagram of a crank, a connecting rod, a first slider and a second slider of the present invention;

[0017] Figure 3 is a top view of the reciprocating motion mechanism of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure explosion of the reciprocating motion mechanism of the present invention;

[0019] Figure 5 It is a schematic diagram of the structural explosion of the cutting mechanism of the present invention.

[0020] Reference numerals: 1. cutting machine body; 2. reciprocating mechanism; 21. crank; 22. connecting rod; 23. first slider; 231. groove; 24. second slider; 25. cross guide groove; 251. transverse groove; 252. longitudinal groove; 253. limit step; 26. rotary drive mechanism; 261. shaded pole motor; 262. differential gear box; 263. planetary gear carrier set; 264. sun gear; 265. fixed outer Teeth; 266, sealing shell; 27, protective shell; 3, cutting mechanism; 31, blade assembly; 311, support limiter; 312, blade; 313, wear-resistant base; 314, buckle; 315, guide groove; 316, guide rail; 32, reciprocating connecting rod assembly; 321, connecting piece; 322, guide rod; 323, buckle groove; 33, partition; 4, outer shell; 6, food introduction channel; 61, push rod; 7, cooking bowl. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0022] Embodiment: A linear reciprocating motion food cutting machine, the structure of which is as follows Figures 1 to 5 As shown, including:

[0023] A cutting machine body 1 is provided with a cutting mechanism 3 inside the cutting machine body 1, and the cutting mechanism 3 is connected to a reciprocating motion mechanism 2, and the reciprocating motion mechanism 2 includes a rotating drive mechanism 26, a crank 21, a connecting rod 22 and a cross guide groove 25, wherein the length of the connecting rod 22 is twice the length of the crank 21, one end of the crank 21 is connected to the output end of the rotating drive mechanism 26, and the other end is connected to the midpoint of the connecting rod 22, and the two ends of the connecting rod 22 are respectively rotatably connected with a first slider 23 and a second slider 24, and the cutting mechanism 3 is connected to the first slider 23, and the first slider 23 and the second slider 24 are both limited in the cross guide groove 25, and the cross guide groove 25 includes a transverse groove 251 and a longitudinal groove 252 that intersect vertically, and when the rotating drive mechanism 26 drives the crank 21 to rotate, the first slider 23 reciprocates along the transverse groove 251, and the second slider 24 reciprocates along the longitudinal groove 252 synchronously.

[0024] Preferably, the reciprocating motion mechanism 2 is provided with a protective shell 27, and the protective shell 27 is a cylinder. The cross guide groove 25 is provided at the upper end of the protective shell 27. The protective shell 27 covers the reciprocating motion mechanism 2 and the rotary drive mechanism 26 inside, which is conducive to converting the seal of the groove into a circular seal of the connecting rod 22. The circular seal is not affected by the reciprocating motion, thereby preventing food residues from falling in.

[0025] Preferably, the first slider 23 and the second slider 24 are both in the shape of a rectangular parallelepiped, the connections between the four sides of the first slider 23 and the second slider 24 are transitioned by chamfers, the perpendicular intersections of the transverse groove 251 and the longitudinal groove 252 are both arc surfaces, and a gap is left between the first slider 23 and the second slider 24 and the cross guide groove 25, which is beneficial to prevent the first slider 23 and the second slider 24 from getting stuck in the cross guide groove 25 when sliding, and is beneficial to improving the smoothness of the cutting machine body 1 during operation.

[0026] Preferably, a limiting step 253 for limiting the first slider 23 and the second slider 24 in the vertical direction is provided at the bottom of the cross guide groove 25 , which is beneficial for limiting the first slider 23 and the second slider 24 when they slide in the cross guide groove 25 .

[0027] Preferably, the top height of the first slider 23 is higher than the slot height of the cross guide groove 25, and the top height of the second slider 24 is lower than the slot height of the cross guide groove 25, and a groove 231 is provided on the top of the first slider 23, which is beneficial for connecting the first slider 23 with the connecting piece 321 of the reciprocating connecting rod assembly 32, driving the reciprocating connecting rod assembly 32 to perform linear reciprocating motion, making the structure more compact, and helping to prevent the first slider 23 and the second slider 24 from getting stuck in the cross guide groove 25 when sliding.

[0028] Preferably, the movement stroke of the first slider 23 and the second slider 24 is 4 times the length of the crank 21, that is, the length of the transverse groove 251 and the longitudinal groove 252 of the cross guide groove 25 are both 4 times the length of the crank 21, which is conducive to the compactness of the overall structure.

[0029] Preferably, the cutting mechanism 3 includes a blade assembly 31 and a reciprocating connecting rod assembly 32, the blade assembly 31 includes a support limit member 311, a blade 312 and a wear-resistant base 313, the support limit member 311 is slidably connected to the wear-resistant base 313, and the blade 312 is fixed to the support limit member 311; the reciprocating connecting rod assembly 32 includes a connecting member 321 fixedly connected to the first slider 23, and the connecting member 321 is connected to a guide rod 322; the support limit member 311 is provided with a buckle 314, and the guide rod 322 is provided with a buckle groove 323, the blade assembly 31 and the reciprocating connecting rod assembly 32 are connected by buckling the buckle 314 into the buckle groove 323, which is beneficial to reduce the wear of the blade 312 on other components, extend the service life of the cutting machine body 1, and improve the compactness of the overall structure.

[0030] Preferably, guide grooves 315 are provided at the left and right bottoms of the support and limit member 311 , and guide rails 316 are provided at corresponding positions on the wear-resistant base 313 , which is conducive to the support and limit member 311 to perform linear reciprocating motion along a certain direction through the guide rod 322 .

[0031] Preferably, a partition 33 is provided between the blade assembly 31 and the reciprocating connecting rod assembly 32, that is, the blade assembly 31 and the reciprocating connecting rod assembly 32 are separated by the partition 33, which is beneficial to the sealing of the reciprocating motion mechanism 2 and the risk of avoiding food residues entering the interior of the machine.

[0032] Preferably, the rotary drive mechanism 26 includes a shaded-pole motor 261 and a differential gear box 262. The shaded-pole motor 261 is arranged at the lower end of the differential gear box 262. A sealing shell 266 is provided on the outside of the differential gear box 262. The differential gear box 262 includes a planetary gear carrier group 263. The planetary gear carrier group 263 includes a sun gear 264 and fixed external teeth 265. Through the cooperation between the sun gear 264 and the fixed external teeth 265, a larger reduction ratio is obtained. The reduction ratio, that is, the transmission ratio of the reduction device, refers to the ratio of the instantaneous input speed to the output speed in the reduction mechanism, which is beneficial to improving the stability of the reciprocating motion mechanism 2 driving the reciprocating connecting rod assembly 32 when performing reciprocating motion.

[0033] Preferably, the cutting machine body 1 includes an outer shell 4, a food introduction channel 6 is provided on the outer shell 4, a cooking bowl 7 is provided below the output port of the food introduction channel 6, the blade assembly 31 is located between the output port of the food introduction channel 6 and the cooking bowl 7, a pushing rod 61 is inserted into the food introduction channel 6, and the output port of the food introduction channel 6 is opposite to the groove on the wear-resistant base 313, which is conducive to avoiding the risk of food residues entering the inside of the machine.

[0034] The working principle of the present invention is as follows: food is put into the food introduction channel 6, and the food is pushed into the cutting mechanism 3 by the pushing rod 61. The cutting mechanism 3 cuts the food, and the cut food falls into the cooking bowl 7 through the notch of the wear-resistant base 313. The cutting action of the cutting mechanism 3 is completed under the action of the reciprocating motion mechanism 2. The motion state of the reciprocating motion mechanism 2 includes an initial state, a first motion state, a second motion state, a third motion state, and a fourth motion state; in the initial state, the first slider 23 is located at the left end of the cross guide groove 25, and the second slider 24 is located at the center of the cross guide groove 25; in the first motion state, the first slider 23 moves from the left end of the cross guide groove 25 to the center of the cross guide groove 25, and the second slider 24 moves from the center of the cross guide groove 25 to the left end of the cross guide groove 25. The first slider 23 moves from the center of the cross guide groove 25 to the right end of the cross guide groove 25, and the second slider 24 moves from the upper end of the cross guide groove 25 to the center of the cross guide groove 25; the third motion state is that the first slider 23 moves from the right end of the cross guide groove 25 to the center of the cross guide groove 25, and the second slider 24 moves from the center of the cross guide groove 25 to the lower end of the cross guide groove 25; the fourth motion state is that the first slider 23 moves from the center of the cross guide groove 25 to the left end of the cross guide groove 25, and the second slider 24 moves from the lower end of the cross guide groove 25 to the center of the cross guide groove 25, and returns to the initial state, so that the first slider 23 can finally drive the cutting mechanism 3 to perform stable reciprocating motion.

[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A linear reciprocating motion food cutting machine, characterized in that: The invention comprises a cutting machine body (1), wherein a cutting mechanism (3) is arranged inside the cutting machine body (1), wherein the cutting mechanism (3) is connected to a reciprocating mechanism (2), wherein the reciprocating mechanism (2) comprises a rotating drive mechanism (26), a crank (21), a connecting rod (22) and a cross guide groove (25), wherein the length of the connecting rod (22) is twice the length of the crank (21), wherein one end of the crank (21) is connected to the output end of the rotating drive mechanism (26), and the other end is connected to the midpoint of the connecting rod (22), and the two ends of the connecting rod (22) are respectively rotatably connected to a first guide groove (25). A slider (23) and a second slider (24), the cutting mechanism (3) being connected to the first slider (23), the first slider (23) and the second slider (24) being both limited in the cross guide groove (25), the cross guide groove (25) comprising a transverse groove (251) and a longitudinal groove (252) intersecting vertically, when the rotary drive mechanism (26) drives the crank (21) to rotate, the first slider (23) reciprocates along the transverse groove (251), and the second slider (24) reciprocates along the longitudinal groove (252) synchronously.

2. The linear reciprocating motion food cutting machine according to claim 1, characterized in that: The first slider (23) and the second slider (24) are both in the shape of a cuboid; the connections between the four side surfaces of the first slider (23) and the second slider (24) are transitioned by chamfers; and the perpendicular intersections of the transverse groove (251) and the longitudinal groove (252) are both arc surfaces.

3. The linear reciprocating motion food cutting machine according to claim 1, characterized in that: A limiting step (253) for limiting the first sliding block (23) and the second sliding block (24) in the vertical direction is provided at the bottom of the cross guide groove (25).

4. The linear reciprocating motion food cutting machine according to claim 1, characterized in that: The top height of the first sliding block (23) is higher than the slot height of the cross guide slot (25), and the top height of the second sliding block (24) is lower than the slot height of the cross guide slot (25).

5. The linear reciprocating motion food cutting machine according to claim 4, characterized in that: The movement stroke of the first slider (23) and the second slider (24) is 4 times the length of the crank (21).

6. The linear reciprocating motion food cutting machine according to claim 1, characterized in that: The cutting mechanism (3) comprises a blade assembly (31) and a reciprocating connecting rod assembly (32); the blade assembly (31) comprises a support and limiting member (311), a blade (312) and a wear-resistant base (313); the support and limiting member (311) is slidably connected to the wear-resistant base (313); the blade (312) is fixed to the support and limiting member (311); the reciprocating connecting rod assembly (32) comprises a connecting member (321) fixedly connected to the first sliding block (23); the connecting member (321) is connected to a guide rod (322); the support and limiting member (311) is provided with a buckle (314); the guide rod (322) is provided with a buckle slot (323); the blade assembly (31) and the reciprocating connecting rod assembly (32) are connected by buckling the buckle (314) into the buckle slot (323).

7. The linear reciprocating motion food cutting machine according to claim 6, characterized in that: The support and limit member (311) is provided with a guide groove (315), and the wear-resistant base (313) is provided with a guide rail (316).

8. The linear reciprocating motion food cutting machine according to claim 6, characterized in that: A partition plate (33) is provided between the blade assembly (31) and the reciprocating connecting rod assembly (32).

9. The linear reciprocating motion food cutting machine according to claim 1, characterized in that: The rotary drive mechanism (26) comprises a shaded-pole motor (261) and a differential gear box (262); the shaded-pole motor (261) is arranged at the lower end of the differential gear box (262); the differential gear box (262) comprises a planetary gear carrier set (263); and the planetary gear carrier set (263) comprises a sun gear (264) and fixed external teeth (265).

10. The linear reciprocating motion food cutting machine according to claim 6, characterized in that: The cutting machine body (1) comprises a shell (4), a food introduction channel (6) is provided on the shell (4), a cooking bowl (7) is provided below the output port of the food introduction channel (6), the blade assembly (31) is located between the output port of the food introduction channel (6) and the cooking bowl (7), and a pushing rod (61) is inserted into the food introduction channel (6).

Images