Carton conveying device

Abstract

The invention discloses a carton conveying device which aims at solving the problems that an existing carton is poor in universality and prone to being damaged during vertical conveying. The device comprises a square-shaped frame, a guide structure, a clamping structure, an overturning opening and closing structure and a conveying structure. The square-shaped frame provides an installation foundation, the guide structure is matched with the screw through the strip-shaped guide strip, and the size of a guide area can be adjusted according to the carton contour. The clamping structure is linked with an infrared sensor by virtue of a hydraulic telescopic rod, so that the carton is stably clamped and released; the turnover opening and closing structure controls the top input port to be opened and closed, the conveying structure completes carton bearing and conveying through a roller and an annular sleeve gasket, and an elastic buffering guide strip is additionally arranged on the rear side to slow down the falling speed. The device is in linkage with the infrared sensor and the hydraulic component through the controller, automatic vertical conveying is achieved, the device is suitable for cartons of multiple sizes, the breakage rate is reduced, and the conveying efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of cardboard box conveying technology, and more specifically to a cardboard box conveying device. Background Technology

[0002] The existing vertical conveying devices for cardboard boxes have the following technical problems in practical applications:

[0003] Most devices have a fixed carton guiding area, which cannot adjust the internal space according to the length, width and height of the carton. They can only accommodate a single size of carton. When it is necessary to transport cartons of different sizes, the device needs to be replaced or modified, which increases the equipment cost and operation complexity.

[0004] The lack of effective cushioning during the vertical drop of the cardboard boxes makes them prone to deformation and damage due to impact from gravity and collision with the inner wall or bottom support components of the device. At the same time, the lack of coordination between clamping and conveying actions often results in congestion where "the front box has not been conveyed away while the rear box has already fallen," affecting the overall conveying efficiency. Summary of the Invention

[0005] To address the aforementioned technical problems, this application solves the issue that existing technologies can only adapt to a single size of carton.

[0006] To achieve the above objectives, the technical solution adopted in this application is: a carton conveying device, comprising a U-shaped frame, a guiding structure, a clamping structure, a flipping opening and closing structure, and a conveying structure.

[0007] The interior of the square frame has vertically arranged installation channels;

[0008] The guide structure has a vertically arranged carton guide area inside, which is adjustablely arranged inside the installation channel so that the size of the carton guide area can be adjusted according to the outer contour of the carton.

[0009] The clamping structures are a pair and symmetrically arranged at the lower part of the U-shaped frame. The clamping part of each clamping structure can be placed in the carton conveying channel, and a clamping area can be formed between the clamping parts of the two clamping structures.

[0010] The flip-opening and closing structure is flipped to be installed at the top input port of the installation channel, thereby opening and closing the top input port of the carton guide area;

[0011] One end of the conveying structure is placed in the installation channel through an installation conveying notch opened on the bottom front side of the installation channel, and is located directly below the bottom output port of the carton guide area, and the bottom of the carton guide area is higher than or equal to the upper edge of the installation conveying notch.

[0012] To better realize the present invention, the U-shaped frame further includes four vertically arranged columns. Any two adjacent columns are connected by multiple horizontal bars arranged at equal intervals along the vertical direction. The outer side of each horizontal bar has a horizontal through-hole, and the top surface of each horizontal bar has a vertical through-hole. A first mounting plate is provided on the top surface of one of the horizontal bars corresponding to the left or right side of the lower section of the column, and a second mounting plate is provided on the top surface of one of the horizontal bars corresponding to the left or right side of the middle section of the column. A first infrared sensor is provided on the first mounting plate, and a second infrared sensor is provided on the second mounting plate. A first hinge seat is provided on the top surface of the adjacent horizontal bar above the second mounting plate.

[0013] To better realize the present invention, the guide structure further includes multiple strip guide bars, which together form the carton guide area. The top of the strip guide bars arranged on the right side and front and rear sides of the column is provided with an arc-shaped guide bar. Multiple screws are provided on the outer wall of all the strip guide bars. Each screw passes through a horizontal strip hole, and the screws are locked by nuts at both ends of the horizontal strip holes.

[0014] To better realize the present invention, the clamping structure further includes a clamping plate placed in the carton guide area, a first hinge joint is provided on the top of the clamping plate, the first hinge joint is hinged to the first hinge seat, and a third hinge seat is provided on the bottom outer side of the clamping plate.

[0015] A second hinge seat is connected to the outside of a crossbar located between the first mounting plate and the second mounting plate via a first detachable structure. A first hydraulic telescopic rod is arranged between the second hinge seat and the third hinge seat. The bottom of the first hydraulic telescopic rod is hinged to the second hinge seat, and the telescopic end of the first hydraulic telescopic rod is hinged to the third hinge seat.

[0016] The first detachable structure includes a first clamping plate, a second clamping plate, and a first bolt fastener. The first clamping plate and the second clamping plate are respectively arranged on the bottom surface and top surface of a corresponding crossbar. The first clamping plate and the second clamping plate are locked to the outside of the corresponding crossbar by the first bolt fastener.

[0017] To better realize the present invention, the flip opening and closing structure further includes a flap, and a rotating shaft is respectively provided on the front and rear end faces of the left side of the flap. A sleeve is rotatably sleeved on the outside of each rotating shaft. The two sleeves are respectively fixedly connected to the top of the two columns located on the left side. A fifth hinge seat is provided on the lower surface of the flap.

[0018] A fourth hinge seat is connected to the outside of the first horizontal bar located on the upper section of the column via a second detachable structure; a second hydraulic telescopic rod is arranged between the fourth hinge seat and the fifth hinge seat, the bottom of the second hydraulic telescopic rod is hinged to the fourth hinge seat, and the telescopic end of the second hydraulic telescopic rod is hinged to the fifth hinge seat.

[0019] The second detachable structure includes a third clamping plate, a fourth clamping plate, and a second bolt fastener. The third clamping plate and the fourth clamping plate are respectively arranged on the bottom surface and top surface of the corresponding first crossbar. The third clamping plate and the fourth clamping plate are locked to the outside of the corresponding crossbar by the second bolt fastener. When the second hydraulic telescopic rod is activated, the flap opens and closes the top input port of the carton guide area.

[0020] To better realize the present invention, the conveying structure further includes a pair of horizontally parallel strip plates, one end of each strip plate being placed inside the installation conveying notch. Multiple rotating shafts are rotatably arranged between the two strip plates. Rollers are sleeved on the outside of each rotating shaft. An annular gasket is fixedly sleeved on the outside of the roller located below the bottom output port of the carton guide area. Side guide strips are provided on the strip plates located outside the installation conveying notch. A strip plate extends from the same side end of all the rotating shafts and is equipped with a drive wheel. Any two adjacent drive wheels are rotatably connected to each other via a belt. A motor is provided on the left end face of the front side of one strip plate, and the output end of the motor is connected to one of the rotating shafts.

[0021] The technical solution provided by this invention has the following advantages compared with the prior art:

[0022] 1. In this invention, the guide structure uses a screw on the outside of the strip guide bar to engage with a horizontal strip hole on the crossbar. Loosening the nut allows adjustment of the position of the strip guide bar, thereby changing the size of the carton guide area. It can adapt to cartons of different length and width dimensions within the range of 200-500mm, without the need to replace the device, thus reducing equipment costs.

[0023] 2. In this invention, an elastic buffer guide bar is added between the rear strip guide bars to slow down the falling speed of the carton. At the same time, an annular sleeve is fitted on the outside of the roller corresponding to the carton output port in the conveying structure to avoid direct collision between the carton and the rigid roller when it falls. The double buffer effectively reduces the carton breakage rate.

[0024] 3. In this invention, the first and second infrared sensors are linked with the controller to detect the status of the cartons on the roller and the status of the cartons in the clamping area in real time, and automatically control the clamping / releasing of the clamping structure and the opening and closing of the flipping opening and closing structure to avoid carton congestion. Compared with manual control, the conveying efficiency is improved by more than 30%.

[0025] 4. In this invention, the second hinge seat of the clamping structure and the fourth hinge seat of the flip-opening and closing structure are both connected to the crossbar through a detachable structure (clamping plate + bolt fastener). The position of the hinge seat can be adjusted by loosening the bolts to adapt to the clamping needs of cartons of different heights, and the maintenance is convenient in the later stage. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 for Figure 1 A sectional view; Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 4 for Figure 1 Sectional view at point A in the middle; Figure 5 for Figure 1 Sectional view at point B; Figure 6 for Figure 2 Sectional view at point C; Figure 7 for Figure 3 Sectional view at point D; Figure 8 This is a schematic diagram of the square-shaped frame structure; Figure 9 for Figure 8 Sectional view at point E in the middle; Figure 10 A schematic diagram of the guiding structure; Figure 11 for Figure 10 Top view; Figure 12 Schematic diagram of the clamping structure Figure 1 ; Figure 13 Schematic diagram of the clamping structure Figure 2 ; Figure 14 Schematic diagram of the flip-opening and closing mechanism Figure 1 ; Figure 15 Schematic diagram of the flip-opening and closing mechanism Figure 2 ; Figure 16 A schematic diagram of the U-shaped frame, clamping structure, and flip-opening / closing structure; Figure 17 This is a schematic diagram of the conveyor structure.

[0028] Explanation of reference numerals in the attached drawings: 100-U-shaped frame; 200-Guide structure; 300-Clamping structure; 400-Flipping opening and closing structure; 500-Conveying structure; 101-Column; 102-Horizontal bar; 103-Horizontal strip hole; 104-Vertical strip hole; 105-First mounting plate; 106-Second mounting plate; 107-First infrared sensor; 108-Second infrared sensor; 109-First hinge seat; 201-Strip guide bar; 202-Arc-shaped guide bar; 203-Screw; 204-Nut; 301-Clamping plate; 302-First hinge joint; 303-First clamping plate; 304-Second clamping plate; 305-First bolt fastener; 306-Second hinge seat; 307-First hydraulic telescopic rod; 308-Third hinge seat; 401-Flip plate; 402-Sleeve; 403-Rotating shaft; 404-Third clamping plate; 405-Fourth clamping plate; 406-Second bolt fastener; 407-Fourth hinge seat; 408-Second hydraulic telescopic rod; 409-Fifth hinge seat; 501-Strip plate; 502-Supporting foot; 503-Roller; 504-Annular sleeve; 505-Side guide strip; 506-Motor. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0030] Example 1

[0031] like Figures 1 to 17 As shown, a carton conveying device includes a U-shaped frame 100, a guide structure 200, a clamping structure 300, a flipping opening and closing structure 400, and a conveying structure 500.

[0032] The interior of the square frame 100 has vertically arranged installation channels;

[0033] The guide structure 200 has a vertically arranged carton guide area inside, which is adjustablely arranged inside the installation channel so that the size of the carton guide area can be adjusted according to the outer contour of the carton.

[0034] The clamping structures 300 are a pair and symmetrically arranged at the lower part of the U-shaped frame 100. The clamping part of each clamping structure 300 can be placed in the carton conveying channel, and a clamping area can be formed between the clamping parts of the two clamping structures 300.

[0035] The flip-opening and closing structure 400 is flip-openly disposed at the top input port of the installation channel, thereby opening and closing the top input port of the carton guide area;

[0036] One end of the conveying structure 500 is placed in the installation channel through an installation conveying notch opened on the bottom front side of the installation channel, and is located directly below the bottom output port of the carton guide area, and the bottom of the carton guide area is higher than or equal to the upper edge of the installation conveying notch.

[0037] like Figures 1 to 17 As shown, in this embodiment, the U-shaped frame 100 includes four vertically arranged columns 101. Any two adjacent columns 101 are connected by multiple horizontal bars 102 arranged at equal intervals along the vertical direction. The outer side of each horizontal bar 102 has a horizontally penetrating slot 103, and the top surface of each horizontal bar 102 has a vertically penetrating slot 104. A first mounting plate 105 is provided on the top surface of one horizontal bar 102 corresponding to the left or right position of the lower section of the column 101. A second mounting plate 106 is provided on the top surface of one horizontal bar 102 corresponding to the left or right position of the middle section of the column 101. A first infrared sensor 107 is provided on the first mounting plate 105, and a second infrared sensor 108 is provided on the second mounting plate 106. A first hinge seat 109 is provided on the top surface of the horizontal bar 102 adjacent to the second mounting plate 106.

[0038] like Figures 1 to 17 As shown, in this embodiment, the guide structure 200 includes multiple strip guide bars 201, which together form the carton guide area. Arc-shaped guide bars 202 are provided on the top of the strip guide bars 201 arranged on the right side and front and rear sides of the column 101. Multiple screws 203 are provided on the outer wall of all the strip guide bars 201. Each screw 203 passes through a horizontal strip hole 103, and the screws 203 are locked at both ends of the horizontal strip hole 103 by nuts 204.

[0039] like Figures 1 to 17 As shown, in this embodiment, the clamping structure 300 includes a clamping plate 301 placed in the carton guide area. The top of the clamping plate 301 is provided with a first hinge joint 302, which is hinged to the first hinge seat 109. The bottom outer side of the clamping plate 301 is provided with a third hinge seat 308.

[0040] A second hinge seat 306 is connected to the outside of a crossbar 102 located between the first mounting plate 105 and the second mounting plate 106 via a first detachable structure. A first hydraulic telescopic rod 307 is arranged between the second hinge seat 306 and the third hinge seat 308. The bottom of the first hydraulic telescopic rod 307 is hinged to the second hinge seat 306, and the telescopic end of the first hydraulic telescopic rod 307 is hinged to the third hinge seat 308.

[0041] The first detachable structure includes a first clamping plate 303, a second clamping plate 304, and a first bolt fastener 305. The first clamping plate 303 and the second clamping plate 304 are respectively arranged on the bottom surface and top surface of the corresponding crossbar 102. The first clamping plate 303 and the second clamping plate 304 are locked to the outside of the corresponding crossbar 102 by the first bolt fastener 305.

[0042] like Figures 1 to 17 As shown, in this embodiment, the flip-opening and closing structure 400 includes a flip plate 401. The front and rear end faces of the left side of the flip plate 401 are respectively provided with a rotating shaft 403. Each rotating shaft 403 is rotatably sleeved with a sleeve 402. The two sleeves 402 are respectively fixedly connected to the top of the two columns 101 located on the left side. The lower surface of the flip plate 401 is provided with a fifth hinge seat 409.

[0043] A fourth hinge seat 407 is connected to the outside of the first crossbar 102 located on the upper section of the column 101 via a second detachable structure; a second hydraulic telescopic rod 408 is arranged between the fourth hinge seat 407 and the fifth hinge seat 409, the bottom of the second hydraulic telescopic rod 408 is hinged to the fourth hinge seat 407, and the telescopic end of the second hydraulic telescopic rod 408 is hinged to the fifth hinge seat 409;

[0044] The second detachable structure includes a third clamping plate 404, a fourth clamping plate 405, and a second bolt fastener 406. The third clamping plate 404 and the fourth clamping plate 405 are respectively arranged on the bottom and top surfaces of the corresponding first crossbar 102. The third clamping plate 404 and the fourth clamping plate 405 are locked to the outside of the corresponding crossbar 102 by the second bolt fastener 406. When the second hydraulic telescopic rod 408 is activated, the flip plate 401 opens and closes the top input port of the carton guide area.

[0045] like Figures 1 to 17As shown, in this embodiment, the conveying structure 500 includes a pair of horizontally parallel strip plates 501. One end of each strip plate 501 is placed inside the installation conveying notch. Multiple rotating shafts are rotatably arranged between the two strip plates 501. A roller 503 is sleeved on the outside of each rotating shaft. An annular sleeve 504 is fixedly sleeved on the outside of the roller 503 located below the bottom output port of the carton guide area. Side guide strips 505 are provided on the strip plates 501 located outside the installation conveying notch. A strip plate 501 extends from the same side end of all the rotating shafts and is provided with a drive wheel. Any two adjacent drive wheels are rotatably connected to each other by a belt. A motor 506 is provided on the left end face of the front side of one strip plate 501. The output end of the motor 506 is connected to one of the rotating shafts.

[0046] A buffer guide strip made of elastic material is arranged between the two rear-side guide strips 201. The top end of the buffer guide strip is fixedly connected to the middle position of the first rear-side crossbar 102. The bottom end of the buffer guide strip is vertically suspended and placed within the carton guiding area. The horizontal distance between the bottom end of the buffer guide strip and the rear-side crossbar 102 is 10mm-20mm. The buffer guide strip is located behind the clamping structure 300, and vertically, the bottom end of the buffer guide strip is higher than the top of the 300. The design of the buffer guide strip further slows down the falling speed of the carton. The elastic coefficient of the buffer guide strip is selected to satisfy the following condition: slowing down the falling speed of the carton, but not cooperating with other guide strips 201 to prevent the carton from stopping at a certain height within the carton guiding area.

[0047] Working principle:

[0048] A carton conveying device also includes a controller and an external power supply. The power supply provides power to the first infrared sensor 107, the second infrared sensor 108, and the controller. The first infrared sensor 107 and the second infrared sensor 108 are connected to the controller, and the controller is connected to the first hydraulic telescopic rod 307 and the second hydraulic telescopic rod 408 respectively.

[0049] When the first infrared sensor 107 detects that a carton is placed on the roller 503, the controller controls the first hydraulic telescopic rod 307 to clamp the two clamping plates 301, thereby clamping the carton located between the two clamping plates 301 and preventing the carton from falling.

[0050] When the second infrared sensor 108 detects that a carton is clamped between the two clamping plates 301, the controller controls the second hydraulic telescopic rod 408 to close the top input port of the carton guide area.

[0051] When the first infrared sensor 107 does not detect a cardboard box (already being conveyed by the roller 503) on the roller 503, the controller controls the first hydraulic telescopic rod 307 to reset the clamping plate 301 and release the cardboard box, allowing it to fall onto the roller 503 of the conveying structure 500. Then, the second infrared sensor 108 detects that no cardboard box is clamped between the two clamping plates 301, and the controller controls the second hydraulic telescopic rod 408 to flip the flap 401, opening the top input port of the cardboard box guide area and allowing paper to pass through. The carton enters the carton guide area from the top input port. Before the carton falls to the clamping structure 300, the first infrared sensor 107 detects another carton on the roller 503. Therefore, the controller controls the two clamping plates 301 to clamp the carton. The carton continues to fall and is held between the two clamping plates 301, creating a clamping-like state. This process is repeated to achieve vertical conveying of the carton.

[0052] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A carton conveying device, characterized in that: It includes a U-shaped frame (100), a guide structure (200), a clamping structure (300), a flip-opening and closing structure (400), and a conveying structure (500). The interior of the square frame (100) has vertically arranged installation channels; The guide structure (200) has a vertically arranged carton guide area inside, which is adjustablely arranged inside the installation channel so as to adjust the size of the carton guide area according to the outer contour of the carton. The clamping structures (300) are a pair and symmetrically arranged in the lower part of the U-shaped frame (100). The clamping part of each clamping structure (300) can be placed in the carton conveying channel, and a clamping area can be formed between the clamping parts of the two clamping structures (300). The flip-opening and closing structure (400) is flip-openably disposed at the top input port of the installation channel, thereby opening and closing the top input port of the carton guide area; One end of the conveying structure (500) is placed in the installation channel through the installation conveying notch opened on the bottom front side of the installation channel, and is located directly below the bottom output port of the carton guide area, and the bottom of the carton guide area is higher than or equal to the upper edge of the installation conveying notch.

2. The carton conveying device according to claim 1, characterized in that: The U-shaped frame (100) includes four vertically arranged columns (101). Any two adjacent columns (101) are connected by multiple horizontal bars (102) arranged at equal intervals along the vertical direction. The outer side of each horizontal bar (102) has a horizontal through-hole (103), and the top surface of each horizontal bar (102) has a vertical through-hole (104). The top of one of the horizontal bars (102) at the lower left or right position of the column (101) is... A first mounting plate (105) is provided on the surface of the column (101). A second mounting plate (106) is provided on the top surface of a crossbar (102) corresponding to the left or right position of the middle section of the column (101). A first infrared sensor (107) is provided on the first mounting plate (105). A second infrared sensor (108) is provided on the second mounting plate (106). A first hinge seat (109) is provided on the top surface of the crossbar (102) adjacent to the second mounting plate (106).

3. The carton conveying device according to claim 1, characterized in that: The guide structure (200) includes multiple strip guide bars (201), which together form the carton guide area. The top of the strip guide bars (201) arranged on the right side and front and rear sides of the column (101) is provided with an arc-shaped guide bar (202). The outer wall of all the strip guide bars (201) is provided with multiple screws (203). Each screw (203) passes through a horizontal strip hole (103), and the screws (203) are locked by nuts (204) at both ends of the horizontal strip hole (103).

4. A carton conveying device according to claim 1, characterized in that: The clamping structure (300) includes a clamping plate (301) placed in the carton guide area. A first hinge joint (302) is provided on the top of the clamping plate (301). The first hinge joint (302) is hinged to the first hinge seat (109). A third hinge seat (308) is provided on the bottom outer side of the clamping plate (301). A crossbar (102) located between the first mounting plate (105) and the second mounting plate (106) is connected to a second hinge seat (306) via a first detachable structure. A first hydraulic telescopic rod (307) is arranged between the second hinge seat (306) and the third hinge seat (308). The bottom of the first hydraulic telescopic rod (307) is hinged to the second hinge seat (306), and the telescopic end of the first hydraulic telescopic rod (307) is hinged to the third hinge seat (308). The first detachable structure includes a first clamping plate (303), a second clamping plate (304), and a first bolt fastener (305). The first clamping plate (303) and the second clamping plate (304) are respectively arranged on the bottom surface and top surface of the corresponding crossbar (102). The first clamping plate (303) and the second clamping plate (304) are locked to the outside of the corresponding crossbar (102) by the first bolt fastener (305).

5. A carton conveying device according to claim 1, characterized in that: The flip-opening and closing structure (400) includes a flip plate (401). The front and rear end faces of the left side of the flip plate (401) are respectively provided with a rotating shaft (403). Each rotating shaft (403) is rotatably sleeved with a sleeve (402). The two sleeves (402) are respectively fixedly connected to the top of the two columns (101) located on the left side. The lower surface of the flip plate (401) is provided with a fifth hinge seat (409). A fourth hinge seat (407) is connected to the outside of the first crossbar (102) located on the upper section of the column (101) via a second detachable structure; a second hydraulic telescopic rod (408) is arranged between the fourth hinge seat (407) and the fifth hinge seat (409), the bottom of the second hydraulic telescopic rod (408) is hinged to the fourth hinge seat (407), and the telescopic end of the second hydraulic telescopic rod (408) is hinged to the fifth hinge seat (409); The second detachable structure includes a third clamping plate (404), a fourth clamping plate (405), and a second bolt fastener (406). The third clamping plate (404) and the fourth clamping plate (405) are respectively arranged on the bottom and top surfaces of the corresponding first crossbar (102). The third clamping plate (404) and the fourth clamping plate (405) are locked to the outside of the corresponding crossbar (102) by the second bolt fastener (406). When the second hydraulic telescopic rod (408) is activated, the flip plate (401) opens and closes the top input port of the carton guide area.

6. A carton conveying device according to claim 1, characterized in that: The conveying structure (500) includes a pair of horizontally parallel strip plates (501). One end of each strip plate (501) is placed inside the installation conveying notch. Multiple rotating shafts are rotatably arranged between the two strip plates (501). Rollers (503) are sleeved on the outside of each rotating shaft. An annular sleeve (504) is fixedly sleeved on the outside of the roller (503) located below the bottom output port of the carton guide area. Side guide strips (505) are provided on the strip plates (501) located outside the installation conveying notch. A strip plate (501) extends from the same side end of all the rotating shafts and is provided with a drive wheel. Any two adjacent drive wheels are rotatably connected to each other by a belt. A motor (506) is provided on the left end face of the front side of one strip plate (501). The output end of the motor (506) is connected to one of the rotating shafts.

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