Automatic noodle pressing machine

Abstract

The utility model belongs to food processing equipment technical field especially relates to a kind of automatic noodle press, including rack, feeding mechanism, driving mechanism, vertical plate, transmission mechanism, noodle press mechanism, dough twisting mechanism and discharging mechanism.Dough twisting mechanism includes dough twisting fixed seat, first dough twisting roller, second dough twisting roller, driving dough twisting gear, first dough twisting gear, second dough twisting gear.First dough twisting roller, second dough twisting roller are parallel, interval arrangement, and form dough twisting gap.Noodle press mechanism includes first noodle press roller, first noodle press gear, second noodle press roller, second noodle press gear.The automatic noodle press provided in the application is integrated noodle pressing and dough twisting function by setting noodle press mechanism and dough twisting mechanism, and the dough cake is directly dropped into dough twisting mechanism after being output from noodle press mechanism, so that the dough cake transfer process is saved, the single noodle processing time is shortened, and the processing efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of food processing equipment, and in particular relates to an automatic noodle pressing machine. Background Technology

[0002] In the food processing industry, noodle processing typically involves two core steps: "pressing dough into a sheet" and "cutting the sheet into noodles." Currently, traditional dough presses on the market have limited functionality, only capable of pressing dough. Operators must first place the dough into the press, where it is squeezed by the rollers to form a thin sheet. The sheet must then be manually transferred to a separate noodle-cutting machine or other equipment to complete the final noodle processing. This process is fragmented, increases the need for sheet transfer, and results in low processing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an automatic dough pressing machine, which aims to solve the technical problems of fragmented processes, increased dough transfer steps, and low processing efficiency in the existing technology.

[0004] To achieve the above objectives, the automatic dough pressing machine provided in this utility model embodiment includes a frame, a feeding mechanism, a driving mechanism, a vertical plate, a transmission mechanism, a dough pressing mechanism, a dough twisting mechanism, and a discharging mechanism. The feeding mechanism is fixed to the vertical plate and disposed on one side of the dough pressing mechanism; the driving mechanism is fixed to the frame and connected to the transmission mechanism; the vertical plate is fixed to the top side of the frame and disposed on one side of the discharging mechanism; the transmission mechanism is fixed to the vertical plate and is drivingly connected to the dough pressing mechanism and the dough twisting mechanism respectively; the dough pressing mechanism is connected to the driving mechanism and disposed above the dough twisting mechanism; the dough twisting mechanism is fixed to the vertical plate and disposed above the discharging mechanism.

[0005] The twisting mechanism includes a twisting base, a first twisting roller, a second twisting roller, a driving twisting gear, a first twisting gear, and a second twisting gear. The twisting base is fixed to the vertical plate. The first twisting roller and the second twisting roller are sequentially fixed to the twisting base and both extend beyond the twisting base. One end of the first twisting roller is connected to the driving twisting gear, and the other end is connected to the first twisting gear. The driving twisting gear is connected to the transmission mechanism. The second twisting gear is fixed to the second twisting roller and meshes with the first twisting gear.

[0006] As an optional embodiment of this utility model, the first twisting roller and the second twisting roller are arranged in parallel and at intervals to form a twisting gap; a first twisting ring is provided on the outer side of the first twisting roller, and multiple first twisting rings are provided, arranged in parallel and at intervals; a second twisting ring is provided on the outer side of the second twisting roller, and multiple second twisting rings are provided, arranged in parallel and at intervals; the first twisting ring and the second twisting ring are arranged alternately.

[0007] As an optional embodiment of this utility model, the feeding mechanism includes a feeding hopper, a feeding pressure roller, and a feeding guardrail. The feeding hopper is fixed to the vertical plate, and the feeding pressure roller is movably disposed on the feeding hopper. The feeding guardrail is disposed on one side of the feeding hopper and fixedly connected to the vertical plate. The feeding guardrail is disposed above the pressing mechanism.

[0008] As an optional solution of this utility model, the driving mechanism includes a motor mounting frame, a drive motor, a drive wheel, a transmission belt, and a pulley. The motor mounting frame is fixed to the frame at an angle, the drive motor is fixed to the motor mounting frame, and the drive wheel is fixed to the drive motor. The transmission belt is fixedly wound around the drive wheel and the pulley respectively. The pulley is fixed to the pressing mechanism.

[0009] As an optional solution of this utility model, the transmission mechanism includes a first transmission gear and a second transmission gear, which are sequentially fixedly connected to the upright plate; the first transmission gear is meshed with the pressing mechanism, the active twisting gear, and the second transmission gear respectively; the second transmission gear is meshed with the first transmission gear and the pressing mechanism respectively.

[0010] As an optional embodiment of this utility model, the pressing mechanism includes a first pressing roller, a first pressing gear, a second pressing roller, and a second pressing gear; the first pressing roller is fixedly mounted on the vertical plate, one end of the first pressing roller is fixedly connected to the pulley, and the other end is fixedly connected to the first pressing gear; the second pressing roller is fixedly mounted on the vertical plate, and one end is fixedly connected to the second pressing gear; the first transmission gear meshes with the first pressing gear, the driving pressing gear, and the second transmission gear respectively; the second transmission gear meshes with the first transmission gear and the second pressing gear respectively; the first pressing roller and the second pressing roller are arranged parallel and spaced apart, forming a pressing gap, which is located above the pressing gap.

[0011] As an optional solution of this utility model, the feeding mechanism includes a feeding plate and a feeding roller. The feeding plate is fixed to the frame and is disposed below the first twisting roller and the second twisting roller. The feeding roller is movably disposed on the feeding plate.

[0012] As an optional solution of this utility model, a control button is fixed on the side of the frame, and the control button is electrically connected to the drive motor.

[0013] The automatic dough press machine provided in this utility model embodiment has at least one of the following technical effects:

[0014] The automatic noodle pressing machine provided in this application integrates the functions of pressing and twisting noodles by setting up a pressing mechanism and a twisting mechanism. The dough sheet falls directly into the twisting mechanism after being output from the pressing mechanism, eliminating the dough sheet transfer process, shortening the processing time of noodles per batch, and improving processing efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A perspective view of the automatic dough press provided in an embodiment of this utility model.

[0017] Figure 2 A perspective view of the automatic dough press provided in an embodiment of this utility model.

[0018] Figure 3 This is a front view of the automatic dough press machine provided in an embodiment of the present invention.

[0019] Figure 4 The rear view of the automatic dough press provided in the embodiment of this utility model.

[0020] Figure 5 A perspective view of the dough pressing mechanism and dough twisting mechanism of the automatic dough press machine provided in the embodiment of this utility model.

[0021] Figure 6 A perspective view of the dough pressing mechanism and dough twisting mechanism of the automatic dough press machine provided in the embodiment of this utility model.

[0022] Figure 7 A side view of the dough pressing mechanism and dough twisting mechanism of the automatic dough press machine provided in this embodiment of the utility model.

[0023] Figure 8 A perspective view of the dough-twisting mechanism of the automatic dough press provided in an embodiment of this utility model.

[0024] The following are the labeling elements in the figure:

[0025] 1. Frame; 2. Feeding mechanism; 3. Drive mechanism; 4. Vertical plate; 5. Transmission mechanism; 6. Surface pressing mechanism; 7. Surface twisting mechanism; 8. Unloading mechanism;

[0026] 11. Control buttons;

[0027] 21. Feed hopper; 22. Feed roller; 23. Feed guardrail;

[0028] 31. Motor mounting bracket; 32. Drive motor; 33. Drive wheel; 34. Transmission belt; 35. Pulley;

[0029] 51. First transmission gear; 52. Second transmission gear;

[0030] 61. First pressing roller; 62. First pressing gear; 63. Second pressing roller; 64. Second pressing gear;

[0031] 71. Twisting base; 72. First twisting roller; 73. Second twisting roller; 74. Drive twisting gear; 75. First twisting gear; 76. Second twisting gear;

[0032] 81. Feeding plate; 82. Feeding roller;

[0033] 721. First twisted ring;

[0034] 731. Second twisted ring. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0036] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0039] In one embodiment of this utility model, such as Figures 1-8 As shown, an automatic dough pressing machine is provided, including a frame 1, a feeding mechanism 2, a drive mechanism 3, a vertical plate 4, a transmission mechanism 5, a dough pressing mechanism 6, a dough twisting mechanism 7, and a discharging mechanism 8. The feeding mechanism 2 is fixed to the vertical plate 4 and is located on one side of the dough pressing mechanism 6; the drive mechanism 3 is fixed to the frame 1 and connected to the transmission mechanism 5; the vertical plate 4 is fixed to the top side of the frame 1 and is located on one side of the discharging mechanism 8; the transmission mechanism 5 is fixed to the vertical plate 4 and is connected to the dough pressing mechanism 6 and the dough twisting mechanism 7 respectively; the dough pressing mechanism 6 is connected to the drive mechanism 3 and is located above the dough twisting mechanism 7; the dough twisting mechanism 7 is fixed to the vertical plate 4 and is located above the discharging mechanism 8.

[0040] The noodle-making mechanism 7 includes a noodle-making fixing seat 71, a first noodle-making roller 72, a second noodle-making roller 73, a driving noodle-making gear 74, a first noodle-making gear 75, and a second noodle-making gear 76. The noodle-making fixing seat 71 is fixed to the upright plate 4. The first noodle-making roller 72 and the second noodle-making roller 73 are sequentially fixed to the noodle-making fixing seat 71 by bearings and both extend out of the noodle-making fixing seat 71. One end of the first noodle-making roller 72 is connected to the driving noodle-making gear 74, and the other end is connected to the first noodle-making gear 75. The driving noodle-making gear 74 is connected to the transmission mechanism 5. The second noodle-making gear 76 is fixed to the second noodle-making roller 73 and meshes with the first noodle-making gear 75.

[0041] In another embodiment of this utility model, the first twisting roller 72 and the second twisting roller 73 are arranged in parallel and at intervals to form a twisting gap; a first twisting ring 721 is provided on the outer side of the first twisting roller 72, and multiple first twisting rings 721 are provided, arranged in parallel and at intervals; a second twisting ring 731 is provided on the outer side of the second twisting roller 73, and multiple second twisting rings 731 are provided, arranged in parallel and at intervals; the first twisting rings 721 and the second twisting rings 731 are arranged alternately.

[0042] Both the first twisting roller 72 and the second twisting roller 73 are made of stainless steel and are mounted on the twisting fixing seat 71 via bearings. The two rollers are arranged in parallel and spaced apart to form a twisting gap. Multiple parallel and spaced first twisting rings 721 are welded to the outside of the first twisting roller 72, and a second twisting ring 731 that is misaligned with the first twisting rings 721 is welded to the outside of the second twisting roller 73. One end of the first twisting roller 72 is keyed to the driving twisting gear 74, and the other end is keyed to the first twisting gear 75. One end of the second twisting roller 73 is keyed to the second twisting gear 76, and the second twisting gear 76 meshes with the first twisting gear 75 to ensure that the two twisting rollers rotate in opposite directions to achieve the twisting of the dough.

[0043] In another embodiment of this utility model, the feeding mechanism 2 includes a feeding hopper 21, a feeding roller 22, and a feeding guardrail 23. The feeding hopper 21 is fixed to the upright plate 4, and the feeding roller 22 is movably disposed on the feeding hopper 21. The feeding guardrail 23 is disposed on one side of the feeding hopper 21 and fixedly connected to the upright plate 4. The feeding guardrail 23 is disposed above the dough pressing mechanism 6. The feeding roller 22 can rotate by gravity and friction of the dough, assisting the dough to enter the dough pressing mechanism 6 smoothly and avoiding dough blockage. The feeding guardrail 23 is an arc-shaped stainless steel plate, fixed on the side of the feeding hopper 21 near the dough pressing mechanism 6, and located above the dough pressing mechanism 6, to prevent the dough from shifting to the side during the dough pressing process.

[0044] In another embodiment of this utility model, the drive mechanism 3 includes a motor mounting bracket 31, a drive motor 32, a drive wheel 33, a transmission belt 34, and a pulley 35. The motor mounting bracket 31 is fixed to the frame 1 at an angle, the drive motor 32 is fixed to the motor mounting bracket 31, and the drive wheel 33 is fixed to the drive motor 32. The transmission belt 34 is fixedly wound around the drive wheel 33 and the pulley 35 respectively. The pulley 35 is fixed to the pressing mechanism 6. The motor mounting bracket 31 is welded to the side of the frame 1 at a 30° angle (the angled design can shorten the transmission distance between the drive wheel 33 and the pulley 35, reduce belt slippage, and adjust the position of the drive motor 32 to facilitate the adjustment of the tension of the transmission belt 34). The drive motor 32 is a servo motor and is fixed to the motor mounting bracket 31 by bolts. The drive wheel 33 is keyed to the output shaft of the drive motor 32, and the pulley 35 is keyed to the first pressing roller 61 of the pressing mechanism 6. The transmission belt 34 is a polyurethane synchronous belt, wound between the drive wheel 33 and the pulley 35 to realize power transmission.

[0045] In another embodiment of this utility model, the transmission mechanism 5 includes a first transmission gear 51 and a second transmission gear 52, which are sequentially fixedly connected to the upright plate 4. The first transmission gear 51 is meshed with the pressing mechanism 6, the active twisting gear 74, and the second transmission gear 52, respectively. The second transmission gear 52 is meshed with the first transmission gear 51 and the pressing mechanism 6, respectively. The first transmission gear 51 meshes simultaneously with the first pressing gear 62 of the pressing mechanism 6, the active twisting gear 74 of the twisting mechanism 7, and the second transmission gear 52. The second transmission gear 52 meshes simultaneously with the first transmission gear 51 and the second pressing gear 64 of the pressing mechanism 6, thereby achieving synchronous reverse rotation of the pressing mechanism 6 and the twisting mechanism 7 through gear meshing.

[0046] In another embodiment of this utility model, the pressing mechanism 6 includes a first pressing roller 61, a first pressing gear 62, a second pressing roller 63, and a second pressing gear 64. The first pressing roller 61 is fixedly mounted on the vertical plate 4 via bearings. One end of the first pressing roller 61 is fixedly connected to the pulley 35, and the other end is fixedly connected to the first pressing gear 62. The second pressing roller 63 is fixedly mounted on the vertical plate 4 via bearings, and one end is fixedly connected to the second pressing gear 64. The first transmission gear 51 is meshed with the first pressing gear 62, the driving twisting gear 74, and the second transmission gear 52. The second transmission gear 52 is meshed with the first transmission gear 51 and the second pressing gear 64. The first pressing roller 61 and the second pressing roller 63 are arranged in parallel and at intervals, forming a pressing gap, which is located above the twisting gap. Both the first pressing roller 61 and the second pressing roller 63 are made of stainless steel and are mounted on the vertical plate 4 through bearings. The two rollers are arranged in parallel and spaced apart to form a pressing gap. One end of the first pressing roller 61 is keyed to the pulley 35 and the other end is keyed to the first pressing gear 62. One end of the second pressing roller 63 is keyed to the second pressing gear 64. The pressing gap is directly above the twisting gap of the twisting mechanism 7, ensuring that the pressed dough can fall directly into the twisting gap.

[0047] In another embodiment of this utility model, the feeding mechanism 8 includes a feeding plate 81 and a feeding roller 82. The feeding plate 81 is fixed to the frame 1 and is disposed below the first noodle-twisting roller 72 and the second noodle-twisting roller 73. The feeding roller 82 is movably disposed on the feeding plate 81. The feeding roller 82 is movably mounted on the end of the feeding plate 81 (near the outlet side) through a sealed bearing, and can rotate with the gravity of the noodles to assist the noodles in sliding down and prevent the noodles from accumulating.

[0048] In another embodiment of this utility model, a control button 11 is fixed on the side of the frame 1, and the control button 11 is electrically connected to the drive motor 32. The drive motor 32 can be started and stopped by the control button 11.

[0049] The automatic dough press machine provided in this application operates as follows:

[0050] Add the dough to the feed hopper 21 in batches (the amount added at one time should not exceed 2 / 3 of the volume of the feed hopper 21 to prevent the dough from overflowing).

[0051] Pressing the "Start / Stop" button on control button 11 starts the drive motor 32, which drives the first pressing roller 61 to rotate via the transmission belt 34; the first pressing roller 61 drives the first pressing gear 62 to rotate, and the first pressing gear 62 drives the first transmission gear 51 to rotate.

[0052] The first transmission gear 51 synchronously drives two components: ① It drives the active twisting gear 74 to rotate, which in turn drives the first twisting roller 72 to rotate. The first twisting roller 72 drives the second twisting gear 76 to rotate via the first twisting gear 75, which in turn drives the second twisting roller 73 to rotate in the opposite direction; ② It drives the second transmission gear 52 to rotate, which in turn drives the second pressing gear 64 to rotate, which in turn drives the second pressing roller 63 to rotate in the opposite direction.

[0053] The dough in the feed hopper 21 moves downward under the action of gravity and contacts the feed roller 22; the feed roller 22 rotates under the action of dough friction, and smoothly conveys the dough to the dough pressing gap.

[0054] Under the pressure of the first pressing roller 61 and the second pressing roller 63, the dough forms a dough sheet of uniform thickness (the thickness of the dough sheet is consistent with the pressing gap); after the dough sheet is output from the pressing gap, it falls vertically into the twisting gap below under the action of gravity.

[0055] The first noodle-splitting roller 72 and the second noodle-splitting roller 73 rotate in opposite directions, and the first noodle-splitting ring 721 and the second noodle-splitting ring 731 on their outer sides mesh with each other to cut the dough into uniform noodles.

[0056] After being shredded, the noodles fall through the shredding gap onto the feeding plate 81. The noodles can then rest on and contact the feeding roller 82. The feeding roller 82 rotates under the friction of the noodles, helping them to slide smoothly into the receiving container (such as a basin), thus completing the noodle processing.

[0057] After the dough is processed, press the "Start / Stop" button on control button 11 to stop the drive motor 32; then the equipment can be cleaned (wipe the parts that come into contact with the dough with a damp cloth to avoid flour residue).

[0058] The automatic noodle pressing machine provided in this application integrates the functions of pressing and twisting noodles by setting up a pressing mechanism 6 and a twisting mechanism 7. The dough sheet is directly dropped into the twisting mechanism 7 after being output from the pressing mechanism 6, eliminating the dough sheet transfer process, shortening the processing time of noodles per batch, and improving processing efficiency.

[0059] The automatic noodle pressing machine provided in this application integrates the functions of pressing and twisting noodles by setting up a pressing mechanism 6 and a twisting mechanism 7. The dough sheet is directly dropped into the twisting mechanism 7 after being output from the pressing mechanism 6, eliminating the dough sheet transfer process, shortening the processing time of noodles per batch, and improving processing efficiency.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic pasta press, characterized by, The machine includes a frame, a feeding mechanism, a drive mechanism, a vertical plate, a transmission mechanism, a dough pressing mechanism, a dough twisting mechanism, and a discharging mechanism. The feeding mechanism is fixed to the vertical plate and is located on one side of the dough pressing mechanism. The drive mechanism is fixed to the frame and connected to the transmission mechanism. The vertical plate is fixed to the top side of the frame and is located on one side of the discharging mechanism. The transmission mechanism is fixed to the vertical plate and is connected to both the dough pressing mechanism and the dough twisting mechanism. The dough pressing mechanism is connected to the drive mechanism and is located above the dough twisting mechanism. The dough twisting mechanism is fixed to the vertical plate and is located above the discharging mechanism. The twisting mechanism includes a twisting base, a first twisting roller, a second twisting roller, a driving twisting gear, a first twisting gear, and a second twisting gear. The twisting base is fixed to the vertical plate. The first twisting roller and the second twisting roller are sequentially fixed to the twisting base and both extend out of the twisting base. One end of the first twisting roller is connected to the driving twisting gear, and the other end is connected to the first twisting gear. The active twisting gear is connected to the transmission mechanism; the second twisting gear is fixed to the second twisting roller and meshes with the first twisting gear.

2. The automatic pasta press according to claim 1, characterized in that, The first twisting roller and the second twisting roller are arranged in parallel and at intervals to form a twisting gap; a first twisting ring is provided on the outer side of the first twisting roller, and multiple first twisting rings are provided and arranged in parallel and at intervals; a second twisting ring is provided on the outer side of the second twisting roller, and multiple second twisting rings are provided and arranged in parallel and at intervals; the first twisting ring and the second twisting ring are arranged alternately.

3. The automatic pasta press according to claim 1, characterized in that, The feeding mechanism includes a feeding hopper, a feeding pressure roller, and a feeding guardrail. The feeding hopper is fixed to the vertical plate, and the feeding pressure roller is movably disposed on the feeding hopper. The feeding guardrail is disposed on one side of the feeding hopper and fixedly connected to the vertical plate. The feeding guardrail is disposed above the pressing mechanism.

4. The automatic pasta press according to claim 2, characterized in that, The drive mechanism includes a motor mounting bracket, a drive motor, a drive wheel, a transmission belt, and a pulley. The motor mounting bracket is fixed to the frame at an angle. The drive motor is fixed to the motor mounting bracket, and the drive wheel is fixed to the drive motor. The transmission belt is fixedly wound around the drive wheel and the pulley. The pulley is fixed to the pressing mechanism.

5. An automatic pasta press according to claim 4, characterized in that, The transmission mechanism includes a first transmission gear and a second transmission gear, which are sequentially and fixedly connected to the upright plate. The first transmission gear is meshed with the pressing mechanism, the active twisting gear, and the second transmission gear. The second transmission gear is meshed with the first transmission gear and the pressing mechanism.

6. An automatic dough press machine according to claim 5, characterized in that, The pressing mechanism includes a first pressing roller, a first pressing gear, a second pressing roller, and a second pressing gear. The first pressing roller is fixedly mounted on the vertical plate, with one end fixedly connected to the pulley and the other end fixedly connected to the first pressing gear. The second pressing roller is fixedly mounted on the vertical plate, with one end fixedly connected to the second pressing gear. The first transmission gear meshes with the first pressing gear, the driving pressing gear, and the second transmission gear. The second transmission gear meshes with the first transmission gear and the second pressing gear. The first pressing roller and the second pressing roller are arranged parallel to each other and spaced apart, forming a pressing gap, which is located above the pressing gap.

7. The automatic pasta press according to claim 1, characterized in that, The feeding mechanism includes a feeding plate and a feeding roller. The feeding plate is fixed to the frame and is located below the first twisting roller and the second twisting roller. The feeding roller is movably mounted on the feeding plate.

8. The automatic pasta press according to claim 4, characterized in that, A control button is fixed to the side of the frame, and the control button is electrically connected to the drive motor.

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