Dough mixer

Abstract

The utility model relates to a dough mixer which comprises a shell, a stirring container, a stirrer and a double-shaft motor, the stirrer is rotatably connected with the shell and extends into the stirring container, and the stirring container is rotatably connected with the shell. Two output shafts of the double-shaft motor are respectively in transmission connection with the stirrer and the stirring container through a first synchronous belt mechanism and a second synchronous belt mechanism, and the first synchronous belt mechanism and the second synchronous belt mechanism are both primary transmission mechanisms. The output ends of the two ends of the stirrer drive the stirrer and the stirring container to rotate through the first-stage transmission mechanism, the first-stage transmission mechanism driving the stirrer to rotate adopts the multi-wedge belt and the matched multi-wedge groove belt wheel, the stirrer is high in rotating speed and large in torque, the multi-wedge belt of the corresponding model can be selected in a controlled mode, and the multi-wedge belt with the appropriate tooth number is selected. And the phenomenon that the synchronous belt slips can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of dough mixers, in particular to a dough mixer. Background Art

[0002] As a kitchen appliance, a dough mixer is used to mix flour, water and other ingredients and knead them into dough, which can greatly improve the efficiency of making pasta.

[0003] Existing dough mixers usually achieve the dough kneading function by rotating an agitator in a mixing container. The agitator has a high speed and a high torque. When the motor drives the agitator to rotate, a multi-stage synchronous wheel group is usually set to achieve transmission. The multi-stage synchronous wheel transmission occupies a large space, has a large capacity loss, and is complex in design and difficult to maintain. The overall manufacturing cost and maintenance cost are high. Summary of the invention

[0004] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a dough mixer, which solves the problem that the existing dough mixer drives the agitator to rotate through a multi-stage synchronous wheel set, has large losses and high manufacturing and maintenance costs.

[0005] The technical solution of the utility model: a dough mixer, comprising a shell, a stirring container, an agitator and a double-shaft motor, the agitator is rotatably connected to the shell and extends into the stirring container, the stirring container is rotatably connected to the shell, two output shafts of the double-shaft motor are respectively connected to the agitator and the stirring container through a first synchronous belt mechanism and a second synchronous belt mechanism, the first synchronous belt mechanism and the second synchronous belt mechanism are both primary transmission mechanisms, the first synchronous belt mechanism includes a first driving wheel, a first driven wheel and a first synchronous belt, the first synchronous belt is a multi-V belt, the first driving wheel and the first driven wheel are both multi-V groove pulleys for matching the first synchronous belt, and both ends of the double-shaft motor are respectively provided with tensioning members for achieving fixed connection with the shell, the tensioning member includes a bearing for penetrating the output end of the double-shaft motor and a plurality of fixing holes for adjusting the position of the tensioning member.

[0006] Furthermore, the first driving wheel is fixedly arranged on the output end of the dual-axis motor, the top of the agitator is rotatably connected to the shell through a rotating shaft, a first driven wheel is fixedly arranged on the rotating shaft, and the first synchronous belt is tensioned between the first driving wheel and the first driven wheel.

[0007] Furthermore, the second synchronous belt mechanism includes a second driving wheel fixedly arranged at the lower output end of the dual-axis motor, the bottom of the mixing container includes a mounting shaft rotatably connected to the shell, a second driven wheel is fixedly arranged on the mounting shaft, and a second synchronous belt is tensioned between the second driving wheel and the second driven wheel.

[0008] Further, the second synchronous belt is a V-belt, and the second synchronous belt mechanism includes a plurality of second synchronous belts, each of which is tensioned between a second driving wheel and a second driven wheel.

[0009] Even further, a scraping rod is fixedly arranged on the housing, the scraping rod extends into the stirring container from above, and there is a gap between the bottom of the scraping rod and the inner cavity of the stirring container.

[0010] Further, the agitator is integrally in a spiral structure.

[0011] Further, the rotational speed of the first driven wheel is higher than that of the second driven wheel.

[0012] Further, an end cover for covering the opening of the stirring container is rotatably arranged on the housing, and the end cover is provided with an opening.

[0013] Even further, a clutch switch for detecting the opened or closed state of the end cover is arranged on the housing.

[0014] Even further, the hinge member is fixedly connected with an eccentric wheel shaft, the eccentric wheel shaft includes a shaft portion rotatably connected with the housing and an eccentric wheel portion eccentrically arranged with respect to the shaft portion, and when the end cover rotates, the eccentric wheel portion rotates to trigger or release the clutch switch.

[0015] In summary, the beneficial effects of the present utility model are as follows: by providing a dual-axis motor, the output ends at both ends thereof drive the agitator and the stirring container to rotate respectively through a first-stage transmission mechanism, and the first-stage transmission mechanism for driving the agitator 3 to rotate adopts a multi-wedge belt and a matching multi-wedge groove pulley. The agitator 3 has a high rotational speed and a large torque, and a corresponding model of multi-wedge belt can be selected and a multi-wedge belt with appropriate number of teeth can be selected to prevent the phenomenon of synchronous belt slipping. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of a specific embodiment of the present utility model;

[0017] Figure 2 is a schematic diagram of the semi-sectional structure of a specific embodiment of the present utility model;

[0018] Figure 3 is a schematic diagram of the overall structure of the tensioning member in a specific embodiment of the present utility model;

[0019] Figure 4 is a schematic diagram of the overall structure of a specific embodiment of the present utility model with a part of the housing hidden;

[0020] Figure 5 is another schematic diagram of the overall structure of a specific embodiment of the present utility model with a part of the housing hidden;

[0021] Figure 6 Schematic diagram of the cooperation of the clutch switch, hinge member and eccentric wheel shaft in a specific embodiment of the present utility model.

[0022] In the figure: 1. Housing; 2. Stirring container; 3. Stirrer; 4. Biaxial motor; 5. First synchronous belt mechanism; 51. First driving pulley; 52. First driven pulley; 53. First synchronous belt; 6. Second synchronous belt mechanism; 61. Second driving pulley; 62. Second driven pulley; 63. Second synchronous belt; 7. Rotating shaft; 8. Mounting shaft; 9. Tensioning member; 91. Bearing; 92. Fixing hole; 10. Scraping rod; 11. End cover; 12. Partition board; 13. Strip-shaped hole; 14. Control panel; 15. Clutch switch; 16. Hinge member; 17. Eccentric wheel shaft; 18. Shaft portion; 19. Eccentric wheel portion. Specific embodiments

[0023] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] It should be noted that in the description of the present utility model, all directional indications (such as up, down, front, back...) are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.

[0025] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present utility model, "several" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0026] In addition, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] Such as Figure 1-6As shown, a dough mixer comprises a shell 1, a stirring container 2, a stirrer 3 with a spiral structure, a dough scraper rod 10 and a double-shaft motor 4. The stirrer 3 is rotatably connected to the shell 1 and extends into the stirring container 2. The dough scraper rod 10 is fixedly arranged with the shell 1 and extends into the stirring container 2. There is a gap between the bottom surface of the dough scraper rod 10 and the inner cavity of the stirring container 2 to prevent the rotation of the stirring container 2 from being affected. The stirring container 2 is rotatably connected to the shell 1. Two output shafts of the double-shaft motor 4 are respectively connected to the stirrer 3 and the stirring container 2 through a first synchronous belt mechanism 5 and a second synchronous belt mechanism 6. The first synchronous belt mechanism 5 and the second synchronous belt mechanism 6 are both primary transmission mechanisms.

[0028] The first synchronous belt mechanism 5 includes a first driving wheel 51, a first driven wheel 52 and a first synchronous belt 53. The first synchronous belt 53 is a multi-V belt. Both the first driving wheel 51 and the first driven wheel 52 are multi-V groove pulleys for matching the first synchronous belt 53.

[0029] The first synchronous belt 53 of this embodiment is a multi-V belt with eight teeth, and the first driving wheel 51 and the first driven wheel 52 are pulleys with eight wedge grooves for matching with the first synchronous belt.

[0030] The second synchronous belt mechanism 6 includes a second driving wheel 61 fixedly arranged at the lower output end of the dual-axis motor 4, the bottom of the mixing container 2 includes a mounting shaft 8 rotatably connected to the housing 1, a second driven wheel 62 is fixedly arranged on the mounting shaft 8, and a second synchronous belt 63 is tensioned between the second driving wheel 61 and the second driven wheel 62;

[0031] The second synchronous belt 63 is a V-belt. The second synchronous belt mechanism 6 includes two second synchronous belts 63. The second driving wheel 61 and the second driven wheel 62 are synchronous wheels with two wedge grooves. Each second synchronous belt 63 is tensioned between the second driving wheel 61 and the second driven wheel 62. The use of two belts in the second synchronous belt mechanism 6 can more evenly distribute the load of the two synchronous wheels, reduce the wear and damage risk of a single belt, and at the same time enhance the power transmission capacity, reduce slippage, and improve overall efficiency.

[0032] The different rotation speeds of the agitator 3 and the stirring container 2 are achieved by controlling the tooth diameter ratio of the first driven wheel 52 to the first driving wheel 51 and the tooth diameter ratio of the second driven wheel 62 to the second driving wheel 61 .

[0033] Both ends of the dual-axis motor 4 are provided with tensioning members 9 for achieving fixed connection with the housing 1. The tensioning member 9 includes a bearing 91 for passing through the output end of the dual-axis motor 4 and four fixing holes 92 for adjusting the position of the tensioning member 9 are evenly distributed in the circumferential direction of the bearing 91;

[0034] Each fixing hole 92 has a strip-shaped structure and can be fixed to the housing 1 by bolts and nuts. The housing 1 is provided with a partition 12 for fixing two tension members 9. An opening for placing the output shafts of the dual-axis motor 4 is provided on the side surface of each partition 12. After the output shafts at both ends of the dual-axis motor 4 respectively pass through the bearings 91 of the two tension members 9, they enter the housing 1 through the openings on the partition 12. At this time, the tension members 9 are respectively placed on the two partitions 12, thereby realizing the support of the dual-axis motor 4.

[0035] Bar-shaped holes 13 are provided at positions corresponding to each fixing hole 92 on the two partitions. The bolts can slide on the fixing holes 92 and the bar-shaped holes 13 to adjust the position of the dual-axis motor 4, so as to change the distance between the driving wheels and the driven wheels in the two synchronous belt mechanisms, thereby realizing the tensioning of the first synchronous belt 53 and the second synchronous belt 63.

[0036] The housing 1 is provided with an end cover 11 for covering the opening of the stirring container 2. The end cover 11 and the housing 1 are hinged by a hinge member 16, so that the end cover 11 can rotate relative to the housing 1 and can cover the stirring container 2. The end cover 11 is provided with an opening, and the opening on the end cover 11 can be used for water passing or as a handle part to lift the end cover 11.

[0037] Furthermore, a clutch switch 15 is installed on the inner side wall of the housing 1. The clutch switch 15 is used to control the start and stop of the dual-axis motor 4. An eccentric wheel shaft 17 is rotatably connected to the housing 1. The eccentric wheel shaft 17 includes a shaft portion rotatably connected to the housing 1 and an eccentric wheel portion eccentrically arranged with respect to the shaft portion. One end of the shaft portion is fixedly connected to one end of the hinge member 16 by a bolt. When the eccentric wheel portion rotates, it can squeeze the clutch switch 15 to make it closed or open.

[0038] When the end cover 11 is closed and covers the stirring container 2, the end cover 11 drives the hinge member 16 to rotate, thereby driving the eccentric wheel shaft 17 to rotate. Thus, the eccentric wheel portion squeezes the clutch switch 15 to make it closed. At this time, the dual-axis motor 4 can be powered on to start the stirring work. When the end cover 11 rotates and opens, the eccentric wheel shaft 17 is driven to rotate by the hinge member 16. During rotation, the outer surface of the eccentric wheel portion gradually leaves the interface of the clutch switch 15, thereby realizing the disconnection of the clutch switch 15. At this time, the dual-axis motor 4 is powered off and stops working, which can effectively prevent stirring and kneading work from being carried out when the end cover 11 is opened, reduce the entry of foreign objects during kneading, or the situation where the hand is stretched into the stirrer 3 and bumped and injured.

[0039] The housing 1 can be split and set, including a box body part for placing the motor, an upper housing part for placing the first synchronous belt mechanism 5, and a lower housing part for placing the second synchronous belt mechanism 6. The upper housing part, the box body part, and the lower housing part are stacked and fixed in sequence to complete the assembly of the housing 1. The bottom plate of the upper housing part and the top plate of the box body part constitute the above-mentioned bottom plate 12. Similarly, the bottom plate of the box body part and the top plate of the lower housing part also constitute the above-mentioned bottom plate 12;

[0040] A control panel 14 for controlling the dual-axis motor 4 can be arranged on the front end face of the upper housing part. The control panel 14 includes an emergency stop switch, a speed regulation switch, a power switch, and a power light. The control panel 14, the clutch switch 15, and the dual-axis motor 4 are electrically connected. The wiring of the control panel 14, the clutch switch 15, and the dual-axis motor 4 is a conventional technology and is not shown in the figure.

[0041] Specifically, the two output ends of the dual-axis motor 4 drive the stirrer 3 and the stirring container 2 to rotate through the primary transmission mechanism respectively, and the rotation speed is controlled by controlling the different tooth diameter ratios of the two pairs of synchronous belt pulleys. Since the stirrer 3 has a high rotation speed and a large torque, and the primary transmission mechanism that drives the stirrer 3 to rotate is a multi-wedge belt and a matching multi-wedge groove pulley, the corresponding model of the multi-wedge belt can be selected, and a multi-wedge belt with appropriate number of teeth can be selected to prevent the phenomenon of synchronous belt slipping, so as to realize that the motor controls the rotation of the stirrer 3 through the primary transmission to knead the dough.

Claims

1. A dough mixer, comprising a housing (1), a mixing container (2), a stirrer (3) and a dual-axis motor (4), one end of the stirrer (3) is rotatably connected to the housing (1), and the other end extends into the mixing container (2), characterized in that, The stirring container (2) is rotationally connected to the housing (1); the two output shafts of the dual-axis motor (4) are respectively connected to the stirrer (3) and the stirring container (2) via a first synchronous belt mechanism (5) and a second synchronous belt mechanism (6); the first synchronous belt mechanism (5) and the second synchronous belt mechanism (6) are both primary transmission mechanisms; the first synchronous belt mechanism (5) comprises a first driving wheel (51), a first driven wheel (52) and a first synchronous belt (53); the first synchronous belt (53) is a multi-ribbed belt; the first driving wheel (51) and the first driven wheel (52) are both multi-ribbed belt pulleys for matching the first synchronous belt (53); and tensioning members (9) for fixing the dual-axis motor (4) to the housing (1) are respectively provided at both ends of the dual-axis motor (4); the tensioning member (9) comprises a bearing (91) for penetrating the output end of the dual-axis motor (4) and a plurality of fixing holes (92) for adjusting the position of the tensioning member (9).

2. The dough mixer according to claim 1, wherein The first driving wheel (51) is fixedly arranged on the output end of the double-shaft motor (4); the top of the agitator (3) is rotatably connected to the housing (1) via a rotating shaft (7); a first driven wheel (52) is fixedly arranged on the rotating shaft (7); and the first synchronous belt (53) is tensioned between the first driving wheel (51) and the first driven wheel (52).

3. The dough mixer according to claim 2, wherein, The second synchronous belt mechanism (6) comprises a second driving wheel (61) fixedly arranged at the lower output end of the dual-axis motor (4); the bottom of the stirring container (2) comprises a mounting shaft (8) rotatably connected to the housing (1); a second driven wheel (62) is fixedly arranged on the mounting shaft (8); and a second synchronous belt (63) is tensioned between the second driving wheel (61) and the second driven wheel (62).

4. The dough mixer according to claim 3, wherein, The second synchronous belt (63) is a V-belt, and the second synchronous belt mechanism (6) comprises a plurality of second synchronous belts (63), each of which is tensioned between the second driving wheel (61) and the second driven wheel (62).

5. The dough mixer according to claim 1, wherein A scraping rod (10) is fixedly arranged on the shell (1), and the scraping rod (10) extends from the top into the stirring container (2), and a gap exists between the bottom of the scraping rod (10) and the inner cavity of the stirring container (2).

6. The dough mixer according to claim 1, characterized in that, The stirrer (3) has a spiral structure as a whole.

7. The dough mixer according to claim 1, characterized in that, The first driven wheel (52) has a higher rotation speed than the second driven wheel (62).

8. A dough mixer according to claim 1, characterized in that, An end cover (11) for covering the opening of the stirring container (2) is hingedly connected to the shell (1) via a hinge (16), and an opening is provided on the end cover (11).

9. The dough mixer according to claim 8, characterized in that, The housing (1) is provided with a clutch switch (15) for controlling the power on and off of the dual-axis motor (4) by detecting the open or closed state of the end cover (11).

10. A dough mixer according to claim 9, characterized in that, The hinge (16) is fixedly connected to an eccentric wheel shaft (17), wherein the eccentric wheel shaft (17) comprises a shaft portion (18) rotatably connected to the housing (1) and an eccentric wheel portion (19) eccentrically arranged to the shaft portion (18); when the end cover (11) rotates, the eccentric wheel portion (19) rotates to trigger or release the clutch switch (15).

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