Intelligent flour mixing machine

Abstract

The application discloses an intelligent dough kneader, which comprises a bottom case for support, a holding assembly for holding dough is arranged on the upper part of the bottom case, a vertical rack is further connected to the rear side of the upper part of the bottom case, a head cover is installed on the top of the vertical rack, a floating retreat mechanism is arranged on the upper side of the holding assembly at the front of the lower side of the head cover, and the floating retreat mechanism is connected with a stirring hook. When the upward axial component force borne by the stirring hook due to the blockage of hard foreign matters exceeds the preset pre-tightening force, the floating retreat mechanism drives the axial retreat of the stirring hook and triggers a stop signal, mechanical buffering and electrical stop double protection under the impact of hard foreign matters are realized. A cavity with spiral blades is formed between the outer sleeve and the stirring cylinder, and cooling water is introduced into the cavity, so that circulating cooling is realized to inhibit the temperature rise of the dough. A bottom scraping plate at the lower end of the connecting cover continuously scrapes the dough adhered to the wall with the rotation of the cylinder, so that the manual cylinder scraping process is omitted. The spring pre-tightening force can be adjusted on site due to the arrangement of the stud and the screw rod, and the process requirements of different dough toughness can be adapted.

Description

Technical Field

[0001] This invention relates to the field of pasta processing equipment technology, and in particular to an intelligent dough kneading machine. Background Technology

[0002] Dough mixers are core equipment in the processing of bread, steamed buns, noodles, and other flour products. They are used to mix flour, water, and additives according to a formula and knead them into dough with a certain gluten strength. Existing dual-action, dual-speed dough mixers generally adopt a structure in which the mixing cylinder and the spiral mixing hook rotate in opposite directions simultaneously. The dough is repeatedly folded, squeezed, and stretched inside the cylinder, resulting in a fully formed gluten network and high dough mixing efficiency.

[0003] However, existing dual-action, dual-speed dough mixers still have the following shortcomings in actual use: During storage and transportation, flour is easily mixed with dry flour lumps, small stones, nails, and other hard foreign objects. Since the mixing hook is usually rigidly connected to the lower end of the main shaft, if the mixing hook hits a hard foreign object, the impact load is directly transmitted to the main shaft and motor, easily causing the hook to bend and deform, the main shaft to break, or even the motor to burn out, seriously affecting the service life of the equipment. During continuous dough mixing in summer, the heat generated by mixing may cause the dough temperature to rise, affecting the stability of subsequent processes. Existing dough mixers mostly rely on intermittent shutdowns or manual water spraying to cool the cylinder walls, resulting in poor temperature control accuracy and cumbersome operation. Dough also easily adheres to the inner wall of the mixing cylinder during mixing, especially in the dead corners at the lower end of the curved head. Existing dough mixers mostly rely on manual stopping to scrape the cylinder, which is labor-intensive and affects food hygiene.

[0004] Therefore, in view of the problems existing in the protection of hard foreign objects, dough temperature control and cylinder wall cleaning of the existing dual-action dual-speed dough mixer, it is necessary to propose a new intelligent dough mixer. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing an intelligent dough mixer.

[0006] To solve the above technical problems, the present invention provides the following technical solution: an intelligent dough mixer, comprising a bottom housing for support, wherein a holding component for holding dough is provided on the upper part of the bottom housing, the holding component comprising a rotatable mixing cylinder, the mixing cylinder rotating around its own axis under drive to cause the dough to tumble. A vertical frame is connected to the upper rear side of the bottom chassis. A machine head cover is installed on the top of the vertical frame, and a cover plate is installed on the front of the machine head cover via a damping hinge. A floating retraction mechanism is provided on the lower front side of the machine head cover above the holding component. The floating retraction mechanism is also connected to a stirring hook for kneading dough. The floating retraction mechanism is used to drive the stirring hook to retract axially and trigger a stop signal when the upward axial force on the stirring hook due to obstruction by a hard foreign object exceeds the preset preload.

[0007] Its beneficial effects are that the floating retraction mechanism connects the mixing hook to the bottom of the machine head cover. When the mixing hook encounters hard foreign objects mixed in the dough, the floating retraction mechanism drives the mixing hook to retract axially and outputs a stop signal, preventing the hook body from being rigidly bent and broken by impact. At the same time, cooling water is introduced through the cavity formed between the outer sleeve and the mixing cylinder to circulate and cool the cylinder wall, solving the problem of the dough temperature rising too quickly in summer. The scraper plate at the bottom of the connecting cover continuously scrapes off the surface stuck to the cylinder wall as the mixing cylinder rotates, eliminating the need for manual stopping and scraping of the cylinder.

[0008] In the above scheme, preferably, a motor is installed at the rear of the bottom chassis cavity, a transmission assembly is provided below the motor, and a transmission assembly is connected to the front of the upper part of the transmission assembly. Both the transmission assembly and the transmission assembly consist of two toothed discs of different sizes and a toothed belt wrapped around their surfaces. The lower end of one of the smaller toothed discs is connected to the shaft of the larger toothed disc on the other side.

[0009] In the above scheme, preferably, the vertical part of the vertical frame is provided with a second motor for driving, the head cover is provided with a third transmission assembly, and the third transmission assembly is located in the horizontal part of the head cover. The third transmission assembly is also composed of two gear discs of different sizes and a toothed belt wrapped around its surface. The output end of the second motor is connected to the shaft of the smaller gear disc.

[0010] In the above scheme, preferably, the holding component includes a connecting plate located at the upper end of the bottom chassis and connected to the upper front side of the transmission component two. The upper end of the connecting plate is also provided with a mixing cylinder for holding flour. The outer surface of the mixing cylinder is also fitted with an outer sleeve. The rear side of the outer surface of the outer sleeve is provided with two connecting blocks connected to the front of the vertical frame for support. The upper part of the outer sleeve is also provided with a connecting cover. The lower end of the connecting cover is also provided with a scraper plate.

[0011] In the above scheme, preferably, the outer sleeve and the mixing cylinder together form a cavity, and the inner cavity of the cavity is also provided with a spiral blade. The upper and lower parts of the right side of the outer surface of the cavity are respectively connected to a water inlet connector and a water outlet connector. A sealing groove is also opened in the middle of the arc surface of the connecting plate. The lower arc surface of the outer sleeve is inserted into and slides in the inner cavity of the sealing groove for sealing. A drain connector is also connected to the bottom arc surface of the outer sleeve.

[0012] In the above scheme, preferably, the floating retraction mechanism includes a sealing flange located in the middle of the front side of the bottom wall of the inner cavity of the machine head cover, and the lower part of the sealing flange penetrates the bottom wall of the machine head cover and extends to the outside. A floating sleeve is also movably arranged in the inner cavity of the sealing flange. An annular groove is formed on the upper side of the outer surface of the floating sleeve. A groove is formed on the upper wall of the inner cavity of the sealing flange. A proximity switch is connected to the inner wall of the groove. A connecting hole is formed at the top of the floating sleeve. A main shaft connected to the lower end of the transmission assembly is also provided in the inner cavity of the connecting hole.

[0013] In the above scheme, preferably, transverse cylindrical pins are symmetrically arranged on both sides of the lower part of the outer surface of the spindle, and an oblong hole adapted to the transverse cylindrical pin is symmetrically opened in the arc-shaped surface of the inner cavity of the connecting hole. A screw hole is opened at the lower end of the spindle, and a stud is threadedly connected to the screw hole. A spring connected to the bottom wall of the connecting hole is also provided at the lower end of the stud. A screw rod penetrating the bottom wall of the connecting hole is also connected to the middle of the lower end of the stud.

[0014] The beneficial effects of this invention are as follows: This invention provides an intelligent dough mixer. Through the cooperation of the floating sliding sleeve, transverse cylindrical pin, and oblong hole of the floating relief mechanism, it maintains axial floating clearance while transmitting the main shaft torque. Combined with springs and proximity switches, it achieves dual protection of mechanical buffering and electrical shutdown under impact from hard foreign objects, preventing the stirring hook from bending and breaking. Spiral blades are set in the cavity between the outer sleeve and the mixing cylinder, dividing the cooling water into spiral channels, extending the heat exchange path between the cooling water and the cylinder wall, and achieving closed-loop control of dough temperature rise in conjunction with the water circuit arrangement. The scraper plate at the lower end of the connecting cover continuously scrapes away dough sticking to the wall as the cylinder rotates, eliminating the need for manual cylinder scraping. The stud and screw rod allow the operator to adjust the spring pre-compression amount externally while the machine is stopped to adapt to the processing requirements of dough with different gluten strengths. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the bottom chassis, vertical frame, and head cover of the present invention. Figure 3 This is a schematic cross-sectional view of the container component of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the three structures of the transmission component of the present invention; Figure 6 This is a schematic diagram of the floating retraction mechanism of the present invention; Figure 7 This is a schematic cross-sectional view of the floating retraction mechanism of the present invention; Figure 8This is a schematic diagram of the overall structure of the present invention from another perspective.

[0016] In the diagram: 1. Bottom casing; 11. Motor 1; 12. Transmission assembly 1; 13. Transmission assembly 2; 2. Container assembly; 21. Connecting plate; 22. Mixing tank; 23. Outer sleeve; 24. Connecting block; 25. Connecting cover; 26. Scraper plate; 27. Cavity; 28. Water inlet connector; 29. ​​Water outlet connector; 201. Spiral blade; 202. Sealing groove; 203. Drain connector; 3. Vertical frame; 4. Head cover; 41. Motor 2; 42. Transmission assembly 3; 5. Cover plate; 6. Floating retraction mechanism; 61. Sealing flange; 62. Floating sleeve; 63. Annular groove; 64. Groove; 65. Proximity switch; 66. Connecting hole; 67. Main shaft; 671. Horizontal cylindrical pin; 672. Screw hole; 673. Screw; 674. Spring; 675. Tightening rod; 676. Oval hole; 7. Mixing hook. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: See also Figures 1 to 8 An intelligent dough mixer includes a bottom housing 1 for support. A holding component 2 for holding dough is provided on the upper part of the bottom housing 1. The holding component 2 includes a rotatable mixing cylinder 22. The mixing cylinder 22 rotates around its own axis under drive to cause the dough to tumble. A vertical frame 3 is also connected to the upper rear side of the bottom housing 1. A machine head cover 4 is installed on the top of the vertical frame 3. A cover plate 5 is also installed on the front of the machine head cover 4 through a damping hinge. A floating retraction mechanism 6 is provided on the lower front side of the machine head cover 4 above the holding component 2. The floating retraction mechanism 6 is also connected to a mixing hook 7 for kneading. The floating retraction mechanism 6 is used to drive the mixing hook 7 to axially retract and trigger a stop signal when the upward axial force on the mixing hook 7 due to obstruction by a hard foreign object exceeds a preset preload.

[0019] The cover 5 can be flipped upwards and opened via a damping hinge to facilitate the inspection and maintenance of the transmission components inside the head cover 4. It should be clear that the entire machine is controlled by a PLC controller to coordinate the operation of motor 11 and motor 241 and the signal acquisition of proximity switch 65. The electrical control logic is common knowledge to those skilled in the art and will not be described in detail here.

[0020] A motor 11 is installed at the rear of the inner cavity of the bottom housing 1. A transmission assembly 12 is located below the motor 11. A transmission assembly 23 is connected to the front upper part of the transmission assembly 12. Both transmission assemblies 12 and 23 consist of two toothed discs of different sizes and a toothed belt wound around their surfaces. The lower end of one of the smaller toothed discs is connected to the axis of the larger toothed disc on the other side. During operation, the motor 11 outputs rotational power, which is reduced in speed by the transmission assembly 12 and then reversed by the transmission assembly 23 before being transmitted upwards to the holding assembly 2, driving the stirring cylinder 22 to rotate around its own axis. The toothed belt uses a synchronous toothed belt, ensuring smooth transmission without slippage, which helps maintain stable cylinder speed.

[0021] The vertical section of the vertical frame 3 houses a second motor 41 for driving the machine. The head cover 4 contains a third transmission assembly 42, located within the horizontal section of the head cover 4. This third transmission assembly 42 also consists of two toothed discs of different sizes and a toothed belt wound around their surface. The output of the second motor 41 is connected to the shaft of the smaller toothed disc. After being reduced in speed by the third transmission assembly 42, the second motor 41 outputs downwards, driving the floating retraction mechanism 6 and the stirring hook 7 to rotate. This achieves a double-acting, counter-rotating motion between the stirring hook 7 and the stirring cylinder 22, enhancing the shearing and kneading effect on the dough.

[0022] The holding assembly 2 includes a connecting plate 21 located at the upper end of the bottom housing 1 and connected to the upper front side of the transmission assembly 2 13. A mixing cylinder 22 for holding flour is also provided at the upper end of the connecting plate 21. An outer sleeve 23 is fitted onto the outer surface of the mixing cylinder 22. Two connecting blocks 24, connected to the front of the vertical frame 3 for support, are provided on the rear side of the outer sleeve 23. The mixing cylinder 22 has an open-top, arc-shaped lower end cap structure and is made entirely of food-grade stainless steel. Its lower end is fixedly connected to the upper surface of the connecting plate 21 and rotates with the connecting plate 21. The outer sleeve 23 is fixedly suspended at the front of the vertical frame 3 by the two connecting blocks 24. The outer sleeve 23 itself does not rotate with the mixing cylinder 22; the mixing cylinder 22 rotates around its own axis inside the outer sleeve 23.

[0023] The upper part of the outer sleeve 23 is also provided with a connecting cover 25, and the lower end of the connecting cover 25 is also provided with a scraper plate 26. The scraper plate 26 is made of food-grade polytetrafluoroethylene material, and its outer contour fits against the inner wall of the mixing tank 22 and the inner wall of the arc-shaped lower end cap. The upper end of the scraper plate 26 is fixedly suspended on the lower side of the connecting cover 25. When the mixing tank 22 rotates, the scraper plate 26 remains stationary and scrapes against the inner wall of the mixing tank 22, continuously scraping off the dough adhering to the tank wall and the arc-shaped bottom, avoiding dough residue sticking to the wall.

[0024] The outer sleeve 23 and the mixing cylinder 22 together form a cavity 27, and the cavity 27 is also provided with a spiral blade 201. The spiral blade 201 is welded to the inner wall of the outer sleeve 23 and divides the cavity 27 into a spiral flow channel. The upper and lower parts of the right side of the outer surface of the cavity 27 are respectively connected to a water inlet connector 28 and a water outlet connector 29. Cooling water supplied by an external chiller enters the cavity 27 through the water inlet connector 28, is forced by the spiral blade 201 to spiral upward along the spiral flow channel, and after fully exchanging heat with the outer wall of the mixing cylinder 22, it flows back to the chiller through the water outlet connector 29. This continuously removes the frictional heat generated by the dough mixing during the kneading process, keeping the center temperature of the dough within the required range. The spiral blade 201 also keeps the inner wall of the outer sleeve 23 and the outer wall of the mixing cylinder 22 apart, preventing the water pressure from crushing the wall surface.

[0025] A sealing groove 202 is also provided in the middle of the arc-shaped surface of the connecting plate 21. The lower arc surface of the outer sleeve 23 is inserted into and slides in the inner cavity of the sealing groove 202 for sealing. A sealing ring is also connected to the lower part of the connecting cover 25. The sealing ring is set between the upper end of the outer sleeve 23 and the upper end of the mixing cylinder 22, and the sealing ring is fixedly connected to the upper end of the outer sleeve 23. The sealing groove 202 and the lower arc surface of the outer sleeve 23 form a rotary joint seal. The sealing ring is made of food-grade silicone and is pressed between the upper end face of the outer sleeve 23 and the outer circle of the mixing cylinder 22 to achieve a rotary dynamic seal at both ends of the cavity 27, ensuring the sealing effect of the cooling water during the rotation of the mixing cylinder 22.

[0026] The outer sleeve 23 is also connected to a drain connector 203 at the bottom arc surface. The drain connector 203 is located at the lowest point of the cavity 27. When the machine is stopped after the shift, the ball valve on the drain connector 203 can be opened to drain the residual cooling water and deposited impurities in the cavity 27, preventing water accumulation and bacterial growth in summer.

[0027] The floating retraction mechanism 6 includes a sealing flange 61 located in the middle of the front side of the bottom wall of the inner cavity of the machine head cover 4. The lower part of the sealing flange 61 penetrates the bottom wall of the machine head cover 4 and extends to the outside. A floating sleeve 62 is also movably disposed in the inner cavity of the sealing flange 61. The floating sleeve 62 can rotate relative to the sealing flange 61 and slide axially. The floating sleeve 62 is cup-shaped, and its inner hole is clearance-fitted with the inner hole of the sealing flange 61. A dustproof sealing ring is wrapped around the outside to prevent flour dust from entering the mating surface.

[0028] An annular groove 63 is provided on the upper side of the outer surface of the floating sleeve 62. A groove 64 is provided on the upper wall of the inner cavity of the sealing flange 61. A proximity switch 65 is connected to the inner wall of the groove 64. A connection hole 66 is provided at the top of the floating sleeve 62. A main shaft 67 connected to the lower end of the transmission assembly 42 is also provided in the inner cavity of the connection hole 66. The stirring hook 7 is connected to the lower part of the outer surface of the floating sleeve 62. In normal kneading conditions, the floating sleeve 62 is pushed downwards to the lower stop point by the spring 674, and the detection surface of the proximity switch 65 is aligned with the annular groove 63. The annular groove 63 and the proximity switch 65 maintain a gap of about 2mm, and the proximity switch 65 does not output a signal. When the stirring hook 7 is subjected to a sufficient upward axial force, the floating sleeve 62 moves upwards along the inner cavity of the sealing flange 61, and the adjacent outer circle on the upper side of the annular groove 63 approaches the detection area of ​​the proximity switch 65. When the gap is less than 1mm, the proximity switch 65 outputs an electrical signal to the PLC. The PLC controls the motor 11 and the motor 41 to stop running and brakes the motor 41, thereby stopping both the stirring cylinder 22 and the stirring hook 7, preventing the stirring cylinder from continuing to drive the material to squeeze the stirring hook.

[0029] The lower part of the outer surface of the main shaft 67 is symmetrically provided with transverse cylindrical pins 671 on both sides. The inner cavity of the connecting hole 66 is symmetrically provided with an oblong hole 676 that matches the transverse cylindrical pins 671. The oblong hole 676 is elongated along the axial direction of the floating sleeve 62. The transverse cylindrical pins 671 pass through the oblong hole 676 and are engaged with the short side wall of the oblong hole 676. When the main shaft 67 rotates, the transverse cylindrical pins 671 push against the short side wall of the oblong hole 676, driving the floating sleeve 62 and the stirring hook 7 to rotate together, thereby realizing torque transmission. When the floating sleeve 62 floats axially, the transverse cylindrical pins 671 slide relative to each other along the long side of the oblong hole 676, retaining an axial floating stroke of 5 to 15 mm, thus taking into account both torque transmission and axial retraction functions.

[0030] The lower end of the main shaft 67 has a threaded hole 672, to which a stud 673 is threadedly connected. A spring 674 is also provided at the lower end of the stud 673, connected to the bottom wall of the connecting hole 66. A screw rod 675, penetrating the bottom wall of the connecting hole 66, is also connected to the middle of the lower end of the stud 673. The spring 674 is a cylindrical helical compression spring, with its upper end abutting against the lower end face of the stud 673 and its lower end abutting against the bottom wall of the connecting hole 66, constantly pushing the floating sleeve 62 downwards to maintain axial preload during normal kneading. When the machine is stopped, the operator can rotate the stud 673 by turning the exposed lever 675. The stud 673 can be screwed in or out along the screw hole 672 to adjust the pre-compression of the spring 674: when the stud 673 is screwed in, the spring 674 is lengthened and the pre-tightening force is reduced, and the stirring hook 7 is softer and can easily retract with slight hardness; when the stud 673 is screwed out, the spring 674 is shortened and the pre-tightening force is increased, and the stirring hook 7 is harder and not easy to retract, thus adapting to the process requirements of doughs with different gluten strengths.

[0031] When in use, flour and water are added into the mixing tank 22 according to the formula, and the equipment is started: Motor 2 41 drives the main shaft 67, floating sleeve 62 and mixing hook 7 to rotate via transmission component 3 42; at the same time, Motor 1 11 drives the connecting plate 21 and mixing tank 22 to rotate in the opposite direction via transmission component 1 12 and transmission component 2 13. The dough is repeatedly folded and kneaded under the dual action of mixing hook 7 and mixing tank 22; scraper plate 26 continuously scrapes off the sticky surface of the tank wall as the mixing tank 22 rotates; cooling water enters the cavity 27 through water inlet connector 28, swirls along the spiral blade 201 and then flows back from water outlet connector 29, carrying away the heat of dough mixing; once the mixing hook 7 encounters a hard foreign object, the floating sleeve 62 moves upward against the elastic force of spring 674, and the proximity switch 65 detects the change in position of annular groove 63 and outputs a stop signal, and motor 2 41 stops rotating by applying the brake.

[0032] The intelligent dough mixer of this invention uses common mechanical methods for installation, connection, or setup, and can be implemented as long as it achieves the desired beneficial effects. Motor 11, Motor 2 41, proximity switch 65, and PLC controller are commercially available standard components. Those skilled in the art only need to follow the accompanying instruction manual for installation and operation, without requiring any creative effort from those skilled in the art.

[0033] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0034] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0035] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An intelligent dough mixer, comprising a bottom housing (1) for support, characterized in that: The bottom casing (1) is provided with a holding component (2) for holding dough. The holding component (2) includes a rotatable mixing cylinder (22). The mixing cylinder (22) rotates around its own axis under drive to make the dough roll. The bottom chassis (1) is also connected to a vertical frame (3) on the upper rear side. The vertical frame (3) is equipped with a machine head cover (4) on the top. The front of the machine head cover (4) is also equipped with a cover plate (5) through a damping hinge. The cover plate (5) is used to seal the operating side of the front of the machine head cover (4) to prevent dust. The lower front part of the machine head cover (4) is provided with a floating retraction mechanism (6) located on the upper side of the holding component (2), and the floating retraction mechanism (6) is also connected to a stirring hook (7) for "kneading dough". The floating retraction mechanism (6) is used to drive the stirring hook (7) to retract axially and trigger a stop signal when the upward axial force on the stirring hook (7) due to the obstruction of a hard foreign object exceeds the preset pre-tightening force.

2. The intelligent dough mixer according to claim 1, characterized in that: The rear of the inner cavity of the bottom chassis (1) is also equipped with a motor (11), and a transmission assembly (12) is also provided at the lower part of the motor (11). The transmission assembly (12) is composed of two toothed discs of different sizes and a toothed belt wrapped around its surface. The output end of the motor (11) is connected to the shaft of the small toothed disc of the transmission assembly (12) to transmit the power of the motor (11) downward.

3. The intelligent dough mixer according to claim 2, characterized in that: The upper front side of the transmission component one (12) is also connected to the transmission component two (13). The transmission component two (13) is also composed of two toothed discs of different sizes and a toothed belt wrapped around its surface. The lower end of one of the smaller toothed discs is connected to the axis of the larger toothed disc on the other side. The transmission component two (13) is used to reverse the power and transmit it upward to the holding component (2) to drive the stirring cylinder (22) to rotate around its own axis.

4. The intelligent dough mixer according to claim 1, characterized in that: The vertical part of the vertical frame (3) is equipped with a second motor (41) for driving. The head cover (4) is equipped with a third transmission assembly (42), and the third transmission assembly (42) is located in the horizontal part of the head cover (4). The third transmission assembly (42) is also composed of two toothed discs of different sizes and a toothed belt wrapped around its surface. The output end of the second motor (41) is connected to the shaft of the small toothed disc. The third transmission assembly (42) is used to transmit the power of the second motor (41) downward to the floating retraction mechanism (6) to drive the stirring hook (7) to rotate and knead the dough.

5. The intelligent dough mixer according to claim 3, characterized in that: The holding component (2) includes a connecting plate (21) located at the upper end of the bottom casing (1) and connected to the upper front side of the transmission component (13). The upper end of the connecting plate (21) is also provided with a mixing cylinder (22) for holding flour. The outer surface of the mixing cylinder (22) is also fitted with an outer sleeve (23). The rear side of the outer surface of the outer sleeve (23) is provided with two connecting blocks (24) connected to the front of the vertical frame (3) for support. The upper part of the outer sleeve (23) is also provided with a connecting cover (25), and the lower end of the connecting cover (25) is also provided with a scraper plate (26). The scraper plate (26) is attached to the inner wall of the mixing tank (22) and is used to scrape off the dough sticking to the wall when the mixing tank (22) rotates.

6. The intelligent dough mixer according to claim 5, characterized in that: The outer sleeve (23) and the mixing tank (22) together form a cavity (27), and the inner cavity of the cavity (27) is also provided with a spiral blade (201). The spiral blade (201) is fixed to the inner wall of the outer sleeve (23) and divides the cavity (27) into a spiral flow channel. The upper and lower parts of the right side of the outer surface of the cavity (27) are respectively connected to the water inlet connector (28) and the water outlet connector (29). Cooling water enters the cavity (27) through the water inlet connector (28) and flows along the spiral flow channel formed by the spiral blades (201) before being discharged from the water outlet connector (29) to cool the wall of the mixing tank (22).

7. The intelligent dough mixer according to claim 6, characterized in that: The connecting plate (21) has a sealing groove (202) in the middle of its arc-shaped surface. The lower arc surface of the outer sleeve (23) is inserted into and slides in the inner cavity of the sealing groove (202) for sealing. The lower part of the connecting cover (25) is also connected to a sealing ring, which is located between the upper end of the outer sleeve (23) and the upper end of the stirring cylinder (22), and the sealing ring is fixedly connected to the upper end of the outer sleeve (23); The bottom arc surface of the outer sleeve (23) is also connected to a drain connector (203), which is used to drain the residual cooling water and accumulated dirt in the cavity (27).

8. The intelligent dough mixer according to claim 4, characterized in that: The floating retraction mechanism (6) includes a sealing flange (61) located in the middle of the front side of the bottom wall of the inner cavity of the machine head cover (4), and the lower part of the sealing flange (61) penetrates the bottom wall of the machine head cover (4) and extends to the outside. The inner cavity of the sealing flange (61) is also movably provided with a floating sliding sleeve (62), which can rotate relative to the sealing flange (61) and slide along the axial direction. An annular groove (63) is provided on the upper side of the outer surface of the floating sleeve (62), and a groove (64) is provided on the upper wall of the inner cavity of the sealing flange (61). A proximity switch (65) is connected to the inner wall of the groove (64). The proximity switch (65) is used to detect the position of the annular groove (63) and output a stop signal when the floating sleeve (62) moves upward.

9. The intelligent dough mixer according to claim 8, characterized in that: The top of the floating sleeve (62) is provided with a connecting hole (66), and the inner cavity of the connecting hole (66) is also provided with a main shaft (67) connected to the lower end of the transmission assembly three (42). The stirring hook (7) is connected to the lower part of the outer surface of the floating sleeve (62). The lower part of the outer surface of the main shaft (67) is symmetrically provided with transverse cylindrical pins (671). The inner cavity of the connecting hole (66) is symmetrically provided with an oblong hole (676) that is adapted to the transverse cylindrical pins (671). The transverse cylindrical pins (671) are engaged in the oblong hole (676) and maintain an axial floating gap with the oblong hole (676) in the long side direction.

10. An intelligent dough mixer according to claim 9, characterized in that: The lower end of the main shaft (67) is provided with a screw hole (672), and a stud (673) is threadedly connected to the screw hole (672). The lower end of the stud (673) is also provided with a spring (674) connected to the bottom wall of the connecting hole (66). The spring (674) is used to push the floating sleeve (62) downward to maintain axial preload during normal kneading. The stud (673) is also connected to a screw rod (675) that passes through the bottom wall of the connecting hole (66) at the middle of its lower end. The screw rod (675) is used to drive the stud (673) to rotate in the stopped state in order to adjust the pre-compression of the spring (674).

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