Strip-shaped steel plate flattening machine with trimming function

Abstract

The utility model discloses a strip-shaped steel plate flattening machine with a trimming function, which belongs to the technical field of steel plate processing and comprises a tool frame. The left side of the tool frame is connected with a driving mechanism. A trimming mechanism is arranged on the right side of the driving mechanism; the trimming mechanism is connected to the upper end of the tool frame. The right side of the tool frame is connected with a leveling mechanism. The trimming mechanism comprises a centering moving assembly, a trimming assembly and a limiting assembly. The centering moving assembly is connected to the upper end of the tool frame. The trimming assembly is connected to the upper end of the centering moving assembly. The limiting assembly is connected to the upper end of the centering moving assembly. Through the mode, the driving mechanism drives the strip-shaped steel plate to move rightwards, the limiting assembly limits the strip-shaped steel plate, displacement of the strip-shaped steel plate is avoided, the trimming assembly trims the strip-shaped steel plate, the leveling mechanism flattens the strip-shaped steel plate, and the operation efficiency is improved; and the centering moving assembly drives the trimming assembly and the limiting assembly to move front and back, so that the trimming assembly can conveniently trim strip-shaped steel plates with different widths.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel sheet processing technical field, concretely relates to a strip steel sheet flat machine with trimming function. BACKGROUND

[0002] In the current rapid development of infrastructure construction, automobile manufacturing, mechanical equipment and other industries, steel plate as an important basic material is widely used, and steel plate processing technology is continuously innovated, and the industry prospect is very broad, and more opportunities and breakthroughs are expected in continuous innovation.

[0003] Chinese patent CN221388225U discloses a kind of correcting straightening device of steel plate, including straightening box, inlet, outlet and cavity are equipped on straightening box, heating block, belt, upper steel pipe and lower steel pipe are installed in cavity, heating block, belt, upper steel pipe and lower steel pipe are all detachably connected with straightening box, upper moving groove and lower moving groove are equipped at inlet, limit plate one is installed in upper moving groove, limit plate two is installed in lower moving groove, gear one and gear two are installed on straightening box, gear one is engaged with rack one, gear two is engaged with rack two, gear one and gear two are all detachably connected with straightening box.However, the device still has the following problems:

[0004] The device is limited by limit plate one and limit plate two to limit steel plate, which is convenient for correcting and straightening steel plate, but steel plate needs to be trimmed in steel plate production operation, and the device needs other equipment to trim steel plate, which increases the time of steel plate production transfer, and reduces operation efficiency.

[0005] Therefore, the utility model discloses a kind of strip steel plate flat machines with trimming function to solve above-mentioned problems. UTILITY MODEL CONTENTS

[0006] In view of the above-mentioned shortcomings of prior art, the utility model provides a kind of strip steel plate flat machines with trimming function.

[0007] To achieve the above purpose, the utility model is realized by the following technical solutions:

[0008] A kind of strip steel plate flat machine with trimming function, including tool holder;

[0009] The left side of tool holder is connected with driving mechanism for driving strip steel plate to move right;Driving mechanism right side is provided with trimming mechanism for trimming the front and back sides of strip steel plate;Trimming mechanism is connected on the upper end of tool holder;The right side of tool holder is connected with flattening mechanism for flattening strip steel plate;

[0010] The trimming mechanism includes a centering moving component, a trimming component, and a limiting component. The centering moving component, which drives the trimming component and the limiting component to move, is connected to the upper end of the tooling frame. The trimming component, which trims the front and rear sides of the strip steel plate, is connected to the upper end of the centering moving component. The limiting component, which limits the strip steel plate, is connected to the upper end of the centering moving component.

[0011] Furthermore, the driving mechanism includes a drive motor, drive rollers, tooling plates, a C-frame, slide bars, springs, driven rollers, and a transmission assembly. The drive motor is fixedly connected to the left front end of the tooling frame; the front and rear ends of multiple drive rollers are rotatably connected to the front and rear inner walls of the tooling frame, respectively; the output end of the drive motor is fixedly connected to the front end of the left drive roller; the ends of adjacent drive rollers are connected via the transmission assembly; tooling plates are symmetrically fixedly connected to the upper end of the tooling frame; each tooling plate is slidably connected to multiple slide bars; springs are sleeved on the outer wall of the slide bars; the upper end of the spring is fixedly connected to the tooling plate; the lower end of the spring is fixedly connected to the C-frame; the front and rear ends of the driven rollers are rotatably connected to the front and rear inner walls of the C-frame, respectively.

[0012] Furthermore, the transmission component adopts a belt and pulley transmission structure.

[0013] Furthermore, the concentric moving assembly includes a side plate, a second drive motor, a synchronous pulley, a synchronous belt, a guide rail, and a second C-frame. The side plate is fixedly connected to the upper end of the tooling frame; the synchronous pulleys are symmetrically rotatably connected to the upper end of the side plate; the synchronous pulleys on the front and rear sides are connected by a synchronous belt drive; the second drive motor is fixedly connected to the lower end of the side plate; the output end of the second drive motor is fixedly connected to the front synchronous pulley; the guide rails are symmetrically fixedly connected to the upper end of the side plate; two sliders are slidably connected to the upper end of each guide rail; the opposing sidewalls of the front sliders are fixedly connected to the left and right ends of the front C-frame, and the opposing sidewalls of the rear sliders are fixedly connected to the left and right ends of the rear C-frame; the inner right wall of the front C-frame is fixedly connected to the right end of the synchronous belt, and the inner left wall of the rear C-frame is fixedly connected to the left end of the synchronous belt.

[0014] Furthermore, the trimming assembly includes a C-shaped frame three, a trimming motor, a drive shaft, and trimming blocks. The upper end of the C-shaped frame two is fixedly connected to the C-shaped frame three; the top of the inner part of the C-shaped frame three is fixedly connected to the trimming motor; the upper end of the C-shaped frame three is rotatably connected to the drive shaft; the output end of the trimming motor is fixedly connected to the drive shaft; trimming blocks are fixedly connected to the side wall of the drive shaft; and the side wall of the trimming blocks is provided with trimming grooves for trimming the strip steel plate.

[0015] Furthermore, the limiting assembly includes a bracket, a limiting rod, and a limiting roller. The upper end of the slider on the left side is fixedly connected to the bracket; the upper end of the bracket is fixedly connected to the limiting rod symmetrically on both sides; and the side wall of the limiting rod is rotatably connected to the limiting roller for limiting the strip steel plate.

[0016] Furthermore, the leveling mechanism includes a third drive motor, rotating shafts, pressure rollers, and a linkage assembly. The front and rear ends of several rotating shafts are respectively rotatably connected to the front and rear inner walls of the tooling frame; the rotating shafts are symmetrically connected to the tooling frame from top to bottom; pressure rollers are fixedly connected to the side walls of each rotating shaft; the third drive motor is fixedly connected to the front end of the tooling frame; the output end of the third drive motor is fixedly connected to the rotating shaft at the front left end; adjacent rotating shafts on the lower side are connected to each other through a transmission assembly; adjacent rotating shafts on the upper side are connected to each other through a transmission assembly; and a linkage assembly is connected to the right side of the front end of the tooling frame.

[0017] Furthermore, the linkage assembly includes a drive gear, a driven gear, and a transmission shaft. The transmission shaft is rotatably connected to the right side of the front end of the tooling frame. The transmission shaft is connected to the rotating shaft at the lower right end via a transmission assembly. The drive gear is fixedly connected to the side wall of the transmission shaft. The driven gear is fixedly connected to the side wall of the rotating shaft at the upper right end. The drive gear and the driven gear are meshed together.

[0018] Compared with the prior art, the advantages of this utility model are as follows: the driving mechanism drives the strip steel plate to move to the right, and the limiting component limits the strip steel plate to prevent it from shifting due to machine vibration. At the same time, the trimming component trims the front and rear sides of the strip steel plate. When the strip steel plate moves to the right side of the tooling frame, the leveling mechanism levels the strip steel plate. The strip steel plate is trimmed while being leveled, eliminating the need to move the strip steel plate to other equipment and improving work efficiency. The centering moving component drives the trimming component and the limiting component to move back and forth, which facilitates the trimming component to trim strip steel plates of different widths and improves processing efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0020] Figure 1 This utility model relates to a three-dimensional strip steel plate flatbed machine with edge trimming function. Figure 1 ;

[0021] Figure 2 This is a front view of a strip steel plate flatbed machine with trimming function according to the present invention;

[0022] Figure 3 This is a right view of a strip steel plate flatbed machine with trimming function according to the present invention;

[0023] Figure 4 For along Figure 3A three-dimensional diagram of AA with a portion removed;

[0024] Figure 5 This utility model relates to a three-dimensional strip steel plate flatbed machine with edge trimming function. Figure 2 ;

[0025] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0026] Figure 7 for Figure 5 Enlarged view of point C in the middle;

[0027] Figure 8 This utility model relates to a three-dimensional strip steel plate flatbed machine with edge trimming function. Figure 3 .

[0028] The labels in the diagram represent:

[0029] 11. Tooling frame; 12. Strip steel plate; 2. Drive mechanism; 21. Drive motor one; 22. Drive roller; 23. Tooling plate; 24. C-frame one; 25. Slide rod; 26. Spring; 27. Driven roller; 28. Transmission assembly; 3. Trimming mechanism; 31. Centering movement assembly; 311. Side plate; 312. Drive motor two; 313. Synchronous pulley; 314. Synchronous belt; 315. Guide rail; 316. C Frame 2; 317, slider; 32, trimming assembly; 321, C-frame 3; 322, trimming motor; 323, drive shaft; 324, trimming block; 325, trimming groove; 33, limiting assembly; 331, bracket; 332, limiting rod; 333, limiting roller; 4, leveling mechanism; 41, drive motor 3; 42, rotating shaft; 43, pressure roller; 44, drive gear; 45, driven gear; 46, transmission shaft. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0032] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-8A strip steel plate flatbed machine with trimming function, including tooling frame 11;

[0033] The tooling frame 11 is connected to a drive mechanism 2 on the left side for driving the strip steel plate 12 to move to the right; the drive mechanism 2 is provided with a trimming mechanism 3 on the right side for trimming the front and rear sides of the strip steel plate 12; the trimming mechanism 3 is connected to the upper end of the tooling frame 11; the tooling frame 11 is connected to a leveling mechanism 4 on the right side for flattening the strip steel plate 12.

[0034] The trimming mechanism 3 includes a centering moving component 31, a trimming component 32, and a limiting component 33. The centering moving component 31, which drives the trimming component 32 and the limiting component 33 to move, is connected to the upper end of the tooling frame 11. The trimming component 32, which trims the front and rear sides of the strip steel plate 12, is connected to the upper end of the centering moving component 31. The limiting component 33, which limits the strip steel plate 12, is connected to the upper end of the centering moving component 31.

[0035] In this invention, the driving mechanism 2 drives the strip steel plate 12 to move to the right, and the limiting component 33 limits the strip steel plate 12 to prevent it from shifting due to machine vibration. At the same time, the trimming component 32 trims the front and rear sides of the strip steel plate 12. When the strip steel plate 12 moves to the right side of the tooling frame 11, the leveling mechanism 4 levels the strip steel plate 12. The strip steel plate 12 is trimmed while being leveled, eliminating the need to move the strip steel plate 12 to other equipment and improving work efficiency. The centering moving component 31 drives the trimming component 32 and the limiting component 33 to move back and forth, which facilitates the trimming component 32 to trim strip steel plates 12 of different widths, improving processing efficiency.

[0036] The driving mechanism 2 includes a drive motor 21, drive rollers 22, tooling plates 23, C-frames 24, slide bars 25, springs 26, driven rollers 27, and a transmission assembly 28. The drive motor 21 is fixedly connected to the left front end of the tooling frame 11. The front and rear ends of the multiple drive rollers 22 are rotatably connected to the front and rear inner walls of the tooling frame 11, respectively. The output end of the drive motor 21 is fixedly connected to the front end of the left drive roller 22. The ends of adjacent drive rollers 22 are connected by transmission assembly 28. The transmission assembly 28 adopts a belt and pulley transmission structure. Tooling plates 23 are symmetrically fixedly connected to the upper end of the tooling frame 11. The tooling plates 23 are slidably connected to multiple slide bars 25. Springs 26 are sleeved on the outer wall of the slide bars 25. The upper end of the springs 26 is fixedly connected to the tooling plates 23. The lower end of the springs 26 is fixedly connected to the C-frames 24, respectively. The front and rear ends of the driven rollers 27 are rotatably connected to the front and rear inner walls of the C-frames 24, respectively.

[0037] In this invention, the output of the drive motor 21 drives the strip steel plate 12 to move to the left via the drive roller 22. At the same time, the driven roller 27 limits the strip steel plate 12 under the elastic force of the spring 26, so as to facilitate the trimming of the strip steel plate 12 with the trimming assembly 32.

[0038] The centering moving assembly 31 includes a side plate 311, a second drive motor 312, a synchronous pulley 313, a synchronous belt 314, a guide rail 315, and a second C-frame 316. The upper end of the tooling frame 11 is fixedly connected to the side plate 311; the upper end of the side plate 311 is symmetrically and rotatably connected to the synchronous pulleys 313; the synchronous pulleys 313 on the front and rear sides are connected by the synchronous belt 314; the lower end of the side plate 311 is fixedly connected to the second drive motor 312; the output end of the second drive motor 312 is fixedly connected to the front synchronous pulley 313. The upper end of the side plate 311 is symmetrically and fixedly connected to guide rails 315; the upper end of each guide rail 315 is slidably connected to two sliders 317; the facing side walls of the front sliders 317 are fixedly connected to the left and right ends of the front C-shaped frame 316, and the facing side walls of the rear sliders 317 are fixedly connected to the left and right ends of the rear C-shaped frame 316; the right inner wall of the front C-shaped frame 316 is fixedly connected to the right end of the timing belt 314, and the left inner wall of the rear C-shaped frame 316 is fixedly connected to the left end of the timing belt 314.

[0039] The trimming assembly 32 includes a C-shaped frame 321, a trimming motor 322, a drive shaft 323, and trimming blocks 324. The upper end of the C-shaped frame 316 is fixedly connected to the C-shaped frame 321. The top of the C-shaped frame 321 is fixedly connected to the trimming motor 322. The upper end of the C-shaped frame 321 is rotatably connected to the drive shaft 323. The output end of the trimming motor 322 is fixedly connected to the drive shaft 323. Trimming blocks 324 are fixedly connected to the side wall of the drive shaft 323. Trimming blocks 324 are provided on the side wall of the trimming blocks 324 for trimming the strip steel plate 12.

[0040] The limiting component 33 includes a bracket 331, a limiting rod 332, and a limiting roller 333. The upper end of the slider 317 on the left side is fixedly connected to the bracket 331; the upper end of the bracket 331 is fixedly connected to the limiting rod 332 symmetrically on both sides; the side wall of the limiting rod 332 is rotatably connected to the limiting roller 333 for limiting the strip steel plate 12.

[0041] In this invention, during the movement of the strip steel plate 12 to the right, the limiting roller 333 limits the strip steel plate 12, aligns the side wall of the strip steel plate 12 with the trimming groove 325, and drives the trimming block 324 to rotate through the drive shaft 323, thereby achieving the trimming of the strip steel plate 12; the output end of the drive motor 312 drives the synchronous pulley 313 to drive the front and rear C-shaped frames 316 to move outward synchronously through the synchronous belt 314, and the C-shaped frame 316 drives the slider 317 and the C-shaped frame 321 to move, changing the distance between the front and rear trimming blocks 324, and synchronously changing the distance between the limiting rollers 333, thereby achieving the trimming of strip steel plates 12 of different widths.

[0042] The leveling mechanism 4 includes a drive motor 41, a rotating shaft 42, a pressure roller 43, a drive gear 44, a driven gear 45, and a transmission shaft 46. The front and rear ends of several rotating shafts 42 are rotatably connected to the front and rear inner walls of the tooling frame 11, respectively. The rotating shafts 42 are symmetrically connected to the tooling frame 11. Pressure rollers 43 are fixedly connected to the side walls of the rotating shafts 42. The drive motor 41 is fixedly connected to the front end of the tooling frame 11. The output end of the drive motor 41 is fixedly connected to the rotating shaft 42 on the front left side. The lower adjacent rotating shafts 42 are connected to each other through a transmission assembly 28. The upper adjacent rotating shafts 42 are connected to each other through a transmission assembly 28. The transmission shaft 46 is rotatably connected to the front right side of the tooling frame 11. The transmission shaft 46 is connected to the rotating shaft 42 on the lower right side through the transmission assembly 28. A drive gear 44 is fixedly connected to the side wall of the transmission shaft 46. A driven gear 45 is fixedly connected to the side wall of the rotating shaft 42 on the upper right side. The drive gear 44 and the driven gear 45 are meshed together.

[0043] Preferably, the right side of the tooling frame 11 is connected to multiple sets of leveling mechanisms 4 arranged in a uniform linear array.

[0044] In this invention, the lower left-side rotating shaft 42 is driven to rotate clockwise by the drive motor 41. The adjacent lower rotating shaft 42 is driven by the transmission assembly 28. The lower rotating shaft 42 drives the lower pressure roller 43 to rotate clockwise synchronously. The lower right-side rotating shaft 42 is driven by the transmission assembly 28 to drive the drive gear 44 to drive the driven gear 45 to rotate counterclockwise. The driven gear 45 drives the upper right-side rotating shaft 42 to rotate counterclockwise. The adjacent upper rotating shaft 42 is driven by the transmission assembly 28. The upper rotating shaft 42 drives the upper pressure roller 43 to rotate counterclockwise synchronously. The pressure rollers 43 on both the upper and lower sides rotate in opposite directions synchronously, thereby moving the strip steel plate 12 to the right and leveling the strip steel plate 12.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A strip plate shearing machine with trimming function, comprising a tool holder (11), characterized in that, It also includes driving mechanism (2), trimming mechanism (3) and leveling mechanism (4); The left side of the tool holder (11) is connected with the driving mechanism (2) for driving the strip-shaped steel plate (12) to move right; the right side of the driving mechanism (2) is provided with the trimming mechanism (3) for trimming the front and rear side edges of the strip-shaped steel plate (12); the trimming mechanism (3) is connected to the upper end of the tool holder (11); the right side of the tool holder (11) is connected with the leveling mechanism (4) for flattening the strip-shaped steel plate (12); The trimming mechanism (3) comprises a centering moving assembly (31), a trimming assembly (32) and a limiting assembly (33), the centering moving assembly (31) for driving the trimming assembly (32) and the limiting assembly (33) to move is connected to the upper end of the tool holder (11); the trimming assembly (32) for trimming the front and rear side edges of the strip-shaped steel plate (12) is connected to the upper end of the centering moving assembly (31); the limiting assembly (33) for limiting the strip-shaped steel plate (12) is connected to the upper end of the centering moving assembly (31).

2. The strip plate machine with a trimming function according to claim 1, characterized in that, The driving mechanism (2) comprises a driving motor (21), driving rollers (22), tool plates (23), C-shaped frames (24), slide rods (25), springs (26), driven rollers (27) and transmission assemblies (28), the driving motor (21) is fixedly connected to the left side of the front end of the tool holder (11); a plurality of driving rollers (22) are rotatably connected to the front and rear inner walls of the tool holder (11); the output end of the driving motor (21) is fixedly connected to the front end of the left driving roller (22); adjacent driving rollers (22) are drivingly connected through transmission assemblies (28); the tool holder (11) is fixedly connected with tool plates (23) on the upper end and left and right symmetrically; the tool plates (23) are slidingly connected with a plurality of slide rods (25); the slide rods (25) are provided with springs (26) on the outer walls; the upper end of the spring (26) is fixedly connected with the tool plate (23); the lower end of the spring (26) is fixedly connected with the C-shaped frame (24); the front and rear ends of the driven roller (27) are rotatably connected with the front and rear inner walls of the C-shaped frame (24).

3. The strip plate machine with a trimming function according to claim 2, characterized in that, The transmission assembly (28) adopts a belt and pulley transmission structure.

4. The strip plate machine with a trimming function according to claim 1, characterized in that, The pair of heart moving assembly (31) includes side plate (311), drive motor two (312), synchronous pulley (313), synchronous belt (314), guide rail (315) and C type frame two (316), the upper end of tool frame (11) is fixedly connected with side plate (311); The upper end of side plate (311) is rotatably connected with synchronous pulley (313) symmetrically in front and back; The front and back synchronous pulley (313) is drivenly connected through synchronous belt (314); The lower end of side plate (311) is fixedly connected with drive motor two (312); The output end of drive motor two (312) is fixedly connected with the front side synchronous pulley (313); The upper end of side plate (311) is fixedly connected with guide rail (315) symmetrically left and right; The upper end of guide rail (315) is slidably connected with two sliders (317); The opposite side walls of front slider (317) are fixedly connected with the left and right ends of front C type frame two (316) respectively, and the opposite side walls of rear slider (317) are fixedly connected with the left and right ends of rear C type frame two (316) respectively; The right side inner wall of front C type frame two (316) is fixedly connected with the right end of synchronous belt (314), and the left side inner wall of rear C type frame two (316) is fixedly connected with the left end of synchronous belt (314).

5. The strip plate machine with a trimming function according to claim 4, characterized in that, The trimming assembly (32) includes C type frame three (321), trimming motor (322), drive shaft (323) and trimming block (324), the upper end of C type frame two (316) is fixedly connected with C type frame three (321); The inner top of C type frame three (321) is fixedly connected with trimming motor (322); The upper end of C type frame three (321) is rotatably connected with drive shaft (323); The output end of trimming motor (322) is fixedly connected with drive shaft (323); The side wall of drive shaft (323) is fixedly connected with trimming block (324); The side wall of trimming block (324) is provided with trimming groove (325) for trimming strip-shaped steel plate (12).

6. The strip plate machine with a trimming function according to claim 4, characterized in that, The limiting assembly (33) includes support (331), limiting rod (332) and limiting roller (333), the upper end of left slider (317) is fixedly connected with support (331); The upper end of support (331) is fixedly connected with limiting rod (332) symmetrically left and right; The side wall of limiting rod (332) is rotatably connected with limiting roller (333) for limiting strip-shaped steel plate (12).

7. The strip plate machine with a trimming function according to claim 2, characterized in that, The flattening mechanism (4) includes drive motor three (41), rotating shaft (42), pressure roller (43) and linkage assembly, the front and back inner walls of tool frame (11) are rotatably connected with the front and back ends of a plurality of rotating shafts (42) respectively; Rotating shaft (42) is connected with tool frame (11) symmetrically up and down; The side wall of rotating shaft (42) is fixedly connected with pressure roller (43); Drive motor three (41) is fixedly connected on the front end of tool frame (11); The output end of drive motor three (41) is fixedly connected with the front left end of rotating shaft (42); The adjacent rotating shafts (42) between the lower side are drivingly connected through transmission assembly (28); The adjacent rotating shafts (42) between the upper side are drivingly connected through transmission assembly (28); The front right side of tool frame (11) is connected with linkage assembly.

8. The strip plate machine with a trimming function according to claim 7, characterized in that, The linkage assembly comprises a driving gear (44), a driven gear (45) and a transmission shaft (46), the transmission shaft (46) is rotatably connected to the front right side of the tool rack (11); the transmission shaft (46) is in driving connection with the rotating shaft (42) at the right lower end through the transmission assembly (28); the transmission shaft (46) is fixedly connected with the driving gear (44) on the side wall; the rotating shaft (42) at the right upper end is fixedly connected with the driven gear (45) on the side wall; the driving gear (44) is in meshing connection with the driven gear (45).

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