Automatic pushing mechanism of full-automatic vegetable cutter

Abstract

The automatic pushing mechanism comprises a supporting frame, a pushing motor, a lead screw, a nut sliding block, a pushing plate, a first guide shaft and a pushing spring, the pushing motor drives the lead screw to rotate, the lead screw and the first guide shaft are horizontally arranged on the supporting frame, the nut sliding block is horizontally arranged on the supporting frame in a sliding mode and is in threaded connection with the lead screw, and the nut sliding block is in threaded connection with the first guide shaft. The material pushing plate is horizontally arranged on the first guide shaft in a sliding mode, one end of the material pushing spring abuts against the material pushing plate, and the other end of the material pushing spring abuts against the supporting frame. According to the full-automatic vegetable cutter, automatic forward pushing is achieved through the pushing spring and the pushing plate, the pushing motor and the nut sliding block are used for driving the pushing plate to retreat, automatic cutting is achieved through the cutting motor and the cutting tool, and compared with the prior art, the full-automatic vegetable cutter is high in automation degree and cutting efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen equipment, and in particular to an automatic material pushing mechanism of a full-automatic vegetable cutter. Background Art

[0002] Traditional food processing is done by manual cutting of vegetables. In various large restaurants or canteens, cutting vegetables often requires a lot of manpower and material resources, and also consumes a lot of time. There are also a small number of automatic food cutting equipment on the market. Existing automatic food cutting equipment, such as a multifunctional cutting machine disclosed in Chinese Patent Publication No. CN113386198A on September 14, 2021, includes a multifunctional cutting machine, including a bottom plate fixed to the bottom between the left guard plate and the right guard cover assembly, a food trough is fixedly connected to the top center of the bottom plate, a rear side plate is fixedly connected to the rear end between the left guard plate and the right guard cover assembly, and a motor drive box assembly is fixedly connected to the front end of the inner side of the left guard plate; a pusher assembly is fixedly connected to the outer side of the left guard plate, and a pushing mechanism corresponding to the food trough is fixedly connected to the output end of the pusher assembly; the rocker of the pusher assembly is pressed down, the spring contracts to retract the pushing mechanism, and the rocker of the pusher assembly is pushed up, and the spring rod will link the pushing mechanism, thereby pushing the food to move toward the knife disc. The above-mentioned existing automatic food cutting equipment has the following problems: 1. When the above-mentioned automatic food cutting equipment is working, the spring rod will extend horizontally and then retract into the body, resulting in the size of the entire automatic food cutting equipment becoming larger and occupying a larger area. 2. The structure of its pusher assembly is complicated. Referring to the power mechanism of a food cutting machine feeding device disclosed in Chinese Patent Announcement No. CN214238553U, it is necessary to manually rotate the rocker arm to start automatic feeding; 3. The above-mentioned existing automatic food cutting equipment is too simple in design, with low safety performance and no safety switch. It is easy for human hands to contact the knife and the pusher device, which is prone to accidents. 4. However, when the existing automatic food cutting equipment is in use, it is impossible to adjust the cutting mechanism in the fruit and vegetable cutting machine to cut fruits and vegetables of different thicknesses, or the cutting mechanism of the fruit and vegetable cutting machine needs to be disassembled as a whole when adjusting, which is cumbersome, time-consuming and labor-intensive. 5. Because there is a thickness difference between the blade of the cutting knife and the surface of the knife disc when the cutting knife is slicing vegetables, the blade of the cutting knife and the knife disc will intermittently contact the vegetables, so the push plate and the slider will be frustrated, the push plate and the vegetables will move back, the cutting will not be smooth, and there will be noise. Summary of the invention

[0003] The object of the present invention is to provide an automatic material pushing mechanism of a fully automatic vegetable cutting machine which has a compact structure and can automatically push and return materials.

[0004] The object of the present invention is achieved in that: An automatic pushing mechanism of a fully automatic vegetable cutting machine is characterized in that it includes a support frame, a pushing motor, a screw rod, a nut slider, a pushing plate, a first guide shaft and a pushing spring. The pushing motor drives the screw rod to rotate. The screw rod and the first guide shaft are horizontally arranged on the support frame. The nut slider is horizontally slidably arranged on the support frame and is threadedly connected to the screw rod. The pushing plate is horizontally slidably arranged on the first guide shaft. One end of the pushing spring abuts against the pushing plate, and the other end of the pushing spring abuts against the support frame. When the pushing motor drives the screw rod to rotate in the opposite direction, the screw rod rotates in the opposite direction to drive the nut slider to slide backward, and the nut slider drives the pushing plate to slide backward, and the pushing spring is compressed. When the pushing motor drives the screw rod to rotate in the forward direction, the screw rod rotates in the forward direction to drive the nut slider to slide forward, the nut slider no longer presses against the pushing plate, and the nut slider no longer blocks the pushing plate from sliding. The pushing spring restores its elastic deformation and pushes the pushing plate forward, and the pushing plate pushes the material forward. The fully automatic vegetable cutting machine of the present invention utilizes a pushing spring and a pushing plate to automatically push the material forward. The present invention also utilizes a pushing motor and a nut slider to drive the pushing plate to retreat. The present invention also utilizes a cutting motor and a cutting tool to achieve automatic cutting. Compared with the prior art, the present invention has a high degree of automation and a high cutting efficiency. The present invention has a small size, a small volume, and a compact structure.

[0005] The present invention can also be further improved as follows.

[0006] The push spring is sleeved on the first guide shaft, and the push spring is fixed firmly and stably.

[0007] The rear end of the feed chute is closed, and the front end of the feed chute is provided with an opening.

[0008] A second guide shaft is horizontally arranged on the support frame, a nut slider is horizontally slidably arranged on the second guide shaft, the first guide shaft, the screw rod and the second guide shaft are arranged side by side, and the nut slider is located on one side of the push plate.

[0009] A first micro switch and a second micro switch are respectively arranged at the beginning and the end of the sliding stroke of the nut slider.

[0010] A third micro switch is arranged at the end of the sliding stroke of the push plate.

[0011] A first hook block is provided on the push plate, and a second hook block is provided on the nut slider corresponding to the first hook block. The second hook block is located in front of the first hook block, and the first hook block and the second hook block are abutted against each other front and back, so as to facilitate the nut slider to drive the push plate to retreat.

[0012] The beneficial effects of the present invention are as follows: 1. The fully automatic vegetable cutting machine of the present invention utilizes a pushing spring and a pushing plate to automatically push the material forward. The present invention also utilizes a pushing motor and a nut slider to drive the pushing plate to retreat. The present invention also utilizes a cutting motor and a cutting tool to achieve automatic cutting. Compared with the prior art, the present invention has a high degree of automation and a high cutting efficiency. The present invention has a small size, a small volume, and a compact structure.

[0013] 2. The push spring of the present invention is not rigidly connected to the push plate, and the push plate is not rigidly connected to the nut slider, so there will be no setbacks, no noise, and a long service life.

[0014] 3. The present invention limits the position of the nut slider by using the first micro switch and the second micro optical switch, thereby ensuring that the nut slider and the push plate work within a specified stroke.

[0015] 4. The fourth micro switch and the fifth micro optical switch of the present invention are protection switches, which can ensure that the full-automatic vegetable cutter of the present invention will not start working when the shell cover and the feeding cover are not closed, thereby ensuring the safety of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a fully automatic vegetable cutting machine according to an embodiment of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the fully automatic vegetable cutting machine from another angle according to the first embodiment of the present invention.

[0018] Figure 3 It is a front view of the fully automatic vegetable cutting machine according to the first embodiment of the present invention.

[0019] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle.

[0020] Figure 5 yes Figure 3 Cross-sectional view at the middle BB.

[0021] Figure 6 It is a schematic structural diagram of the fully automatic vegetable cutting machine in Embodiment 1 of the present invention with some main chassis and shell cover omitted.

[0022] Figure 7 It is a schematic structural diagram from another angle of the fully automatic vegetable cutter in Embodiment 1 of the present invention with part of the main case and the shell cover omitted.

[0023] Figure 8 It is an exploded view of the fully automatic vegetable cutting machine according to the first embodiment of the present invention.

[0024] Fig. 9 It is a structural schematic diagram of the automatic material pushing mechanism of the first embodiment of the present invention.

[0025] Fig.10 It is a structural schematic diagram of the automatic material pushing mechanism of the first embodiment of the present invention from another angle.

[0026] Fig.11 It is a schematic structural diagram of a vegetable cutting knife according to the first embodiment of the present invention.

[0027] Fig.12 It is a schematic structural diagram of the vegetable cutting knife according to the first embodiment of the present invention from another angle.

[0028] Fig.13 It is a front view of the vegetable cutting knife according to the first embodiment of the present invention.

[0029] Fig.14 yes Fig.13 Cross-sectional view at CC.

[0030] Fig.15 It is an exploded view of the vegetable cutting knife according to the first embodiment of the present invention.

[0031] Fig.16 It is a schematic structural diagram of a locking knob according to the first embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Embodiment 1, as Figures 1 to 16 As shown, a fully automatic vegetable cutting machine includes a main box 2 and a cutting box 3. The cutting box 3 is fixedly connected to the front of the main box 2. A feed trough 45, a cutting motor 5 and an automatic pushing mechanism 4 are provided in the main box 2. A vegetable placing opening 21 is provided on the main box 2 corresponding to the feed trough 45.

[0034] A vegetable cutting tool 6 is provided in the cutting box for rotating about a horizontal line as a rotating axis. The front end of the feed trough 45 is connected with the inner cavity of the cutting box 3. A material drop opening 33 is provided at the bottom of the cutting box 3. The cutting motor 5 drives the vegetable cutting tool 6 to rotate and cut vegetables.

[0035] The main chassis 2 includes a chassis and a support frame 40 disposed inside the main chassis.

[0036] The automatic pushing mechanism 4 includes a pushing motor 42, a screw rod 43, a nut slider 44, a pushing plate 46, a first guide shaft 48 and a pushing spring 47. The pushing motor 42 is arranged on a support frame and drives the screw rod 43 to rotate. The screw rod 43 and the first guide shaft 48 are horizontally arranged on the support frame 40 in the main chassis 2. The nut slider 44 is horizontally slidably arranged on the support frame 40 in the main chassis 2 and is threadedly connected with the screw rod 43. The pushing plate 46 is horizontally slidably arranged on the first guide shaft 48. The pushing plate 46 slides horizontally in the feed trough 45. The nut slider 44 and the pushing plate 46 are abutted against each other front and back. One end of the pushing spring 47 is abutted against the pushing plate 46, and the other end of the pushing spring 47 is abutted against the support frame 40. When the pushing motor 42 drives the screw rod 43 to rotate, the rotation of the screw rod 43 drives the nut slider 44 to slide backward, and the nut slider 44 drives the pushing plate 46 to slide backward, and the pushing spring 47 is compressed. When the push motor drives the screw rod to rotate forward, the screw rod rotates forward and drives the nut slider to slide forward, the nut slider no longer presses against the push plate 46, the nut slider no longer blocks the push plate 46 from sliding, the push spring 47 restores its elastic deformation, pushes the push plate 46 forward, and the push plate 46 pushes the material forward.

[0037] As a more specific technical solution of the present invention.

[0038] The push spring 47 is sleeved on the first guide shaft 48 .

[0039] The support frame 40 is horizontally provided with a second guide shaft 416, a nut slider 44 is horizontally slidably provided on the second guide shaft 416, the first guide shaft, the screw rod and the second guide shaft 416 are arranged side by side, and the nut slider 44 is located on one side of the push plate. Therefore, the structure of the present invention is compact and small in size.

[0040] The first micro switch 410 and the second micro switch 49 are respectively provided at the beginning and the end of the sliding stroke of the nut slider 44. When the nut slider 44 touches the first micro switch 410 and the second micro switch 49, the first micro switch 410 and the second micro switch 49 will be triggered, and the first micro switch 410 or the second micro switch 49 will disconnect the circuit of the pusher motor and send a signal to the controller 23, and the pusher motor will stop working.

[0041] The third micro switch 411 is provided at the end of the sliding stroke of the push plate 46. When the push plate 46 touches the third micro switch 411, the third micro switch 411 is triggered, the third micro switch 411 disconnects the circuit of the cutting motor, and sends a signal to the controller 23.

[0042] The shape of the push plate 46 matches the shape of the feed chute 45 .

[0043] The push plate 46 is provided with a first hook block 413 , and the nut slider 44 is provided with a second hook block 414 corresponding to the first hook block 413 . The second hook block 414 is located in front of the first hook block 413 , and the first hook block 413 and the second hook block 414 are abutted against each other front and back.

[0044] A controller 23 is provided on the top of the main chassis 2.

[0045] The bottom of the main chassis 2 is provided with supporting feet 1 .

[0046] A vegetable placement opening 21 is provided on the top surface of the main chassis 2 at a position corresponding to the feed slot 45 .

[0047] A feeding cover 22 for opening or closing the vegetable placing opening 21 is provided on the top surface of the main housing 2 .

[0048] The feeding cover is rotatably connected to the main box 2, and a fourth micro switch is provided at the position of the main box 2 corresponding to the feeding cover. When the feeding cover closes the vegetable placing opening 21, the feeding cover triggers the fourth micro switch 419, and the fourth micro switch 419 connects the circuit of the cutting motor. When the feeding cover is rotated to open, the feeding cover does not trigger the fourth micro switch 419, and the fourth micro switch 419 disconnects the circuit of the cutting motor and sends a signal to the controller 23, and the cutting motor stops working.

[0049] The cutting box 3 includes a fixed shell 32 and a shell cover 31. The rear side of the fixed shell 32 is connected to the front end of the feed chute 45. The vegetable cutting knife 6 is rotatably arranged in the fixed shell 32. The shell cover 31 is rotatably connected to the front side of the fixed shell 32. The shell cover 31 can be opened and closed on the fixed shell 32.

[0050] A locking knob 38 for locking or unlocking the shell cover 31 is provided on the fixed shell 32 corresponding to the shell cover 31, a locking pin 35 is elastically and movably provided on the shell cover 31, a locking groove 34 is provided at the position of the locking knob 38 corresponding to the locking pin 35, and an entrance is provided at one end of the locking groove 34, through which the locking pin 35 slides into the locking groove 34.

[0051] The fixed shell 32 is provided with a fifth micro switch 37, and the shell cover is provided with a top column 36 for triggering the fifth micro switch 37. When the shell cover closes the fixed shell, the top column 36 on the shell cover triggers the fifth micro switch, and the fifth micro switch connects the circuit of the cutting motor 5. When the shell cover is opened, the fifth micro switch 37 is not triggered, the fifth micro switch 37 disconnects the circuit of the cutting motor 5, and sends a signal to the controller 23, and the cutting motor stops working.

[0052] The vegetable cutting tool 6 includes a movable knife disc 61, a fixed knife disc 67, a movable blade 62, a fixed blade 63, an adjusting nut 65, a locking bolt 66 and an externally threaded barrel 68. The vegetable cutting tool of the present invention is a slicing tool. The vegetable cutting tool 6 of the present invention can also be a shredding tool 7 or a dicing tool 8. The movable knife disc 61 and the fixed knife disc 67 are coaxially sleeved together. The movable blade 62 and the fixed blade 63 are respectively arranged on the rear surface of the movable knife disc 61 and the rear surface of the fixed knife disc 67. The externally threaded barrel 68 is arranged at the center of the movable knife disc 61. The central shaft sleeve 610 of the fixed knife disc 67 passes through the externally threaded barrel 68. The adjusting nut 65 is threadedly connected with the externally threaded barrel 68. The locking bolt 66 is movably arranged on the adjusting nut 65. The locking bolt 66 passes through the adjusting nut 65 and extends into the central shaft sleeve 610 of the fixed knife disc 67. There is a gap between the movable blade 62 and the fixed blade 63 to form a slicing seam 64. The movable knife disc 61 is movably arranged on the fixed knife disc 67 along the axial direction.

[0053] The center hole of the movable cutter disc 61 is sleeved on the outer side surface of the external threaded tube 68 and has an interference fit with the external threaded tube 68 .

[0054] The adjusting nut 65 includes an inner ring 613 and an outer ring 612 which are connected and arranged inside and outside. The inner wall of the outer ring 612 is provided with an internal thread. The outer ring 612 is threadedly connected to the external threaded tube 68. The end face of the inner ring 613 abuts against the end face of the center sleeve 610. The locking bolt 66 passes through the inner ring 613 and abuts against the end face of the center sleeve 610.

[0055] The inner end surface of the locking bolt 66 is provided with a locking screw 69 for threaded connection with the screw hole 52 on the motor shaft 51, and the inner end surface of the locking bolt 66 abuts against the end surface of the center sleeve 610. The locking bolt fixes the adjusting nut 65, the movable cutter disc 61, and the fixed cutter disc 67 to the motor shaft 51.

[0056] The adjusting nut 65 is a plastic nut which is easily deformed. Therefore, when the adjusting nut 65 and the locking bolt are assembled, the adjusting nut 65 overcomes the obstacle of the first anti-dropping buckle 614 and can be forcibly pressed into the inner ring.

[0057] The inner side wall of the inner ring of the adjusting nut 65 is provided with a first anti-dropping undercut 614, and the outer side wall of the locking bolt 66 is provided with a second anti-dropping undercut 613 corresponding to the first anti-dropping undercut 614, and the first anti-dropping undercut 614 cooperates with the second anti-dropping undercut 613. This structure can effectively prevent the locking bolt 66 from being lost.

[0058] The inner wall of the external threaded tube 68 is provided with a limiting step 615, and the outer wall of the central sleeve 610 is provided with a limiting convex ring 611. The limiting convex ring 611 cooperates with the limiting step 615. The limiting convex ring is used to prevent the adjusting nut and the movable knife disc from continuing to move outward, thereby limiting the adjusting nut 65 from adjusting the size of the slicing gap.

[0059] The end surface of the inner ring 613 abuts against the limiting convex ring 611 .

[0060] The slicing seam 64 is in an arc shape.

[0061] The controller 23 is provided with a forward button, a backward button, a reset button, and a switch button. When the vegetable cutter of the present invention is powered on and in standby mode, the user presses the reset button, and the push motor 42 drives the nut slider 44 to slide backward and return to the beginning of its stroke, so that the user can put vegetables into the feed slot again. When the vegetable cutter of the present invention is powered on and in standby mode, the user presses the forward button or the backward button, and the push motor 42 drives the nut slider 44 forward or backward and slides to the beginning or end of its stroke. The user can stop pressing at any time. After the user lets go, the push plate 46 stops sliding, thereby controlling the position of the push plate 46.

[0062] The working principle of the present invention is: When the vegetable cutter of the present invention is powered on and on standby, the user opens the feeding cover and then presses the back button, the pushing motor 42 drives the screw rod 43 to rotate in the opposite direction, the screw rod 43 rotates in the opposite direction to drive the nut slider 44 to slide backward, the nut slider 44 drives the pushing plate 46 to slide backward, the pushing spring 47 is compressed until the nut slider 44 touches the first micro switch 410, the first micro switch 410 disconnects the circuit of the pushing motor 42 and sends a signal to the controller 23, the pushing motor 42 stops, and then the user puts the vegetables into the feeding trough 45, and then cover the feeding cover, the fourth micro switch is triggered, and sends a signal to the controller 23, the user presses the switch button, the cutting motor 5 and the pushing motor 42 are started, the cutting motor 5 drives the cutting tool to rotate, the pushing motor 42 drives the screw rod 43 to rotate forward, the screw rod 43 rotates forward to drive the nut slider 44 to slide forward, the nut slider 44 no longer presses against the pushing plate 46, the nut slider 44 no longer blocks the pushing plate 46 from sliding, the nut slider 44 keeps sliding forward until the second micro switch 49 is triggered, and the fourth micro switch 49 is turned on. The second micro switch 49 disconnects the circuit of the push motor 42 and sends a signal to the controller 23, and the push motor 42 stops. At the same time, the push spring 47 pushes the push plate 46 to slide forward. The push spring 47 extends, and the push plate 46 pushes the vegetables in the feed trough 45 to slide forward. Since the cutting tool blocks the vegetables in the feed trough, the push plate 46 cannot slide forward quickly, and the vegetables in the feed trough 45 are gradually pushed into the cutting box 3. The cutting tool cuts the vegetables into slices, and the sliced ​​vegetables fall out of the cutting box 3 from the drop port. When the push plate 46 moves to the front end of the feed trough 45, the push plate 46 stops moving forward. At this time, all the vegetables in the feed trough are cut by the cutting tool. The push plate triggers the third microswitch 411, and the third microswitch 411 disconnects the circuit of the cutting motor and sends a signal to the controller 23. The cutting motor stops, and the controller 23 sends a signal to the push motor 42 at the same time. The push motor 42 drives the screw rod 43 to rotate in the opposite direction, and the nut slider 44 drives the push plate 46 to slide backward, making it convenient for the user to put vegetables into the feed trough again.

[0063] When the user wants to replace the cutting tool, he can rotate the locking knob, then open the shell cover 31, then unscrew the locking bolt 66, and then remove the slicing tool, then install the dicing tool 8 or the shredding tool 7 on the motor shaft of the cutting motor 5, re-tighten the locking bolt 66, fix the dicing tool 8 or the shredding tool 7, and then close the shell cover 31. The fifth microswitch 37 is triggered, and the fifth microswitch connects the circuit of the cutting motor 5 and sends a signal to the controller 23.

[0064] When the user wants to change and adjust the slice thickness of the cutting tool, he can rotate the locking knob to open the shell cover 31, then loosen the locking bolt 66, and then rotate the adjusting nut 65. The adjusting nut 65 rotates to drive the external threaded barrel 68, the movable knife disc 61, and the movable blade 62 to move forward or backward, while the fixed blade 63 remains in place, thereby changing the size of the slicing gap 64 between the movable blade 62 and the fixed blade 63, thereby adjusting the slice thickness.

Claims

1. An automatic material pushing mechanism of a fully automatic vegetable cutting machine, characterized in that: It includes a support frame, a pushing motor, a screw rod, a nut slider, a pushing plate, a first guide shaft and a pushing spring. The pushing motor drives the screw rod to rotate. The screw rod and the first guide shaft are horizontally arranged on the support frame. The nut slider is horizontally slidably arranged on the support frame and is threadedly connected to the screw rod. The pushing plate is horizontally slidably arranged on the first guide shaft. One end of the pushing spring is against the pushing plate, and the other end of the pushing spring is against the support frame. The nut slider is against the pushing plate front and back.

2. The automatic material pushing mechanism of the fully automatic vegetable cutting machine according to claim 1 is characterized in that: The push spring is sleeved on the first guide shaft.

3. The automatic material pushing mechanism of the fully automatic vegetable cutting machine according to claim 2 is characterized in that: A second guide shaft is horizontally arranged on the support frame, a nut slider is horizontally slidably arranged on the second guide shaft, the first guide shaft, the screw rod and the second guide shaft are arranged side by side, and the nut slider is located on one side of the push plate.

4. The automatic material pushing mechanism of the fully automatic vegetable cutting machine according to claim 2 is characterized in that: A first micro switch and a second micro switch are respectively arranged at the beginning and the end of the sliding stroke of the nut slider.

5. The automatic material pushing mechanism of the fully automatic vegetable cutting machine according to claim 4 is characterized in that: A third micro switch is arranged at the end of the sliding stroke of the push plate.

6. The automatic material pushing mechanism of the fully automatic vegetable cutting machine according to claim 5 is characterized in that: The rear end of the feed chute is closed, and the front end of the feed chute is provided with an opening.

7. The automatic material pushing mechanism of the fully automatic vegetable cutting machine according to claim 2 is characterized in that: A first hook block is arranged on the push plate, a second hook block is arranged on the nut slider corresponding to the first hook block, the second hook block is located at the front side of the first hook block, and the first hook block and the second hook block are butted against each other front and back.

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