Distributing and feeding device of new energy automobile part production line

Abstract

The invention provides a distributing and feeding device of a new energy automobile part production line, and relates to the technical field of new energy automobile production, the distributing and feeding device comprises a conveying support, a conveying motor, a conveying belt and conveying rollers, the conveying support is provided with a feeding mechanism for feeding automobile parts, the conveying support is provided with an adjusting mechanism for adjusting the feeding mechanism, and the conveying motor is arranged on the conveying support. The feeding mechanism comprises mounting bottom frames, at least two conveying rubber rollers, side plates and L-shaped bottom rods, the adjusting mechanism comprises an arc-shaped plate, the mounting bottom frames are located at the upper end of the conveying support, and the number of the conveying rubber rollers is at least two. According to the device, conveying rubber rollers on the two sides are arranged, dynamic clamping force is formed in the new energy automobile part conveying process, high-adhesive-force contact is formed between the conveying rubber rollers and the surfaces of the new energy automobile parts, the new energy automobile parts are pushed to be conveyed, and meanwhile the slipping risk of the new energy automobile parts on the conveying belt is effectively restrained; and stable conveying and feeding of the new energy automobile parts are guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicle production, and more specifically, it particularly relates to a feeding device for the distribution of new energy vehicle part production lines. Background Art

[0002] The feeding device for the distribution of new energy vehicle part production lines refers to equipment that realizes precise positioning, clamping, and conveying of materials through an automated mechanical structure. Its functions are to improve production line efficiency, ensure operation safety, and adapt to the flexible production requirements of various specifications of parts, mainly for feeding core components such as power batteries (cells, modules, battery packs), drive motors (stators, rotors), lightweight body parts (aluminum alloy / carbon fiber structural parts), and electric control system components (high-voltage connectors, sensors).

[0003] The Chinese patent publication number is: CN118790677B, a circulating conveying device for automobile parts. In the present invention, unqualified automobile parts are exported from the guiding section and slide along the first slide plate and the rectangular frame to the top of the pallet. The buffer frame intercepts the unqualified automobile parts. Then, the forward and reverse motor works to rotate the spiral shaft, and the pallet drives the unqualified automobile parts, the buffer frame, and the cylinder to move down to the bottom end inside the rectangular frame. Finally, the cylinder extends to push the unqualified automobile parts to the top of the second slide plate, and the unqualified automobile parts slide along the second slide plate and fall to the recycling section.

[0004] The existing new energy vehicle feeding devices have the following disadvantages:

[0005] 1. When feeding existing new energy accessories, a conveyor belt is mostly used for feeding. When feeding large parts such as battery packs, due to insufficient conveyor belt tension, excessive load, easy rolling of cylindrical batteries (such as 4680 cells), and easy side-sliding of square battery modules due to center of gravity offset, the accessories being transported may slip and shift on the conveyor belt, resulting in low transportation efficiency and the need for manual intervention in the transportation process.

[0006] 2. When feeding existing new energy accessories to equipment, it cannot well adapt to the size of the parts and assist in limiting the position of the parts. If the size of the parts is larger than the width of the conveyor belt, there is a possibility of deviation and falling during transportation, and it cannot meet the distribution of various-shaped parts. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides a feeding device for the distribution of new energy vehicle part production lines to solve the above problems.

[0008] The feeding device for a new energy vehicle parts production line includes a conveying support, a conveying motor, a conveyor belt, and conveying rollers. An upper feeding mechanism for feeding automotive parts is provided on the conveying support, and an adjusting mechanism for adjusting the upper feeding mechanism is provided on the conveying support. The upper feeding mechanism includes a mounting chassis, conveying rubber rollers, side plates, and L-shaped bottom rods. The adjusting mechanism includes arc-shaped plates. The mounting chassis is located at the upper end of the conveying support. The number of conveying rubber rollers is at least two, and each conveying rubber roller is rotatably installed on the mounting chassis. The number of side plates is two, and the two side plates are respectively fixedly installed at the lower end of the mounting chassis. The number of arc-shaped plates is two, and the two arc-shaped plates are both fixedly installed at the lower end of the mounting chassis. The L-shaped bottom rod is fixedly installed at the side end of the side plate. A worm is rotatably installed at the side end of the L-shaped bottom rod. The thread lines on the two worms are opposite. The conveyor belt is arranged on the conveying support, and the conveying rollers are located inside the conveyor belt. The conveying motor is fixedly installed on the conveying support. A mounting member is fixedly installed at the side end of the conveying support. A mounting vertical frame is fixedly installed at the upper end of the mounting chassis. A first driving roller is rotatably installed at the lower end of the mounting chassis. A first spur gear is fixedly installed at the circumferential end of the first driving roller. A first bevel gear is fixedly installed at the lower end of the first spur gear. A second spur gear is fixedly installed at the circumferential end of each conveying rubber roller in the lower section. A first transmission belt is engaged between the second spur gear and the first spur gear. A second transmission belt is engaged and sleeved at the circumferential end of each second spur gear. A second driving roller is rotatably installed at the side end of the side plate. A worm gear is fixedly installed at the circumferential end of the second driving roller. A second bevel gear is also fixedly installed at the circumferential end of the second driving roller. The second bevel gear is engaged with the first bevel gear. A side cross plate is fixedly installed between the two arc-shaped plates. A thread groove is formed through the side end of the side cross plate. A first telescopic rod is fixedly installed between the two arc-shaped plates and the side end of the conveying support respectively.

[0009] Preferably, a thread groove is formed through the side end of the side cross plate, and a lead screw is rotatably installed on the inner side wall of the mounting member. The lead screw is threadedly installed on the inner side wall of the thread groove.

[0010] Preferably, a second telescopic rod is fixedly installed between the worm and the conveying roller, and the worm is engaged with the worm gear.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, by providing an adjustable mounting chassis and conveying rubber rollers, when transporting components with different specifications and sizes such as battery cells, modules, and battery pack casings, the positions of the mounting chassis and conveying rubber rollers can be flexibly adjusted according to the dimensions of the components, so as to adapt to the spatial fixation requirements during the transportation of new energy vehicle components. The adjustment is convenient and the adaptability is relatively high.

[0013] In the present invention, by providing an adjustable mounting chassis and conveying rubber rollers, when the device clamps and fixes new energy vehicle components, different clamping forces can be applied to the new energy vehicle components by adjusting the positions of the mounting chassis and conveying rubber rollers according to the types of new energy vehicle components. While ensuring the stability of feeding and conveying, damage caused by excessive clamping of new energy vehicle components can be avoided.

[0014] In the present invention, by providing conveying rubber rollers on both sides, a dynamic clamping force is formed during the transportation of new energy vehicle components, making high-adhesion contact with the surface of the new energy vehicle components. While pushing the new energy vehicle components for feeding, the risk of the new energy vehicle components slipping on the conveyor belt is effectively inhibited, ensuring the stable transmission and feeding of the new energy vehicle components and offsetting the inertial deviation during the acceleration of the conveyor belt.

[0015] In the present invention, by providing the cooperation of a worm, a worm wheel, and a second bevel gear, the rotation speed of each conveying rubber roller is the same as that of the conveyor belt, effectively preventing the deviation or surface wear of new energy vehicle components caused by the speed difference, and realizing the high-efficiency synchronization and stability of the clamping and conveying of new energy vehicle components.

[0016] In the present invention, by providing the cooperation of a worm and a second telescopic rod, when adjusting the positions of the mounting chassis and conveying rubber rollers on both sides, through the telescopic movement of the second telescopic rod, while realizing the adjustment of the spacing between the conveying rubber rollers, after adjustment, under the drive of the second telescopic rod, the rotation of the worm can still be realized, and then each conveying rubber roller is driven to rotate to convey the battery, making the use of the device more flexible and ensuring its adaptation range on the basis of realizing stable transportation. Description of the Drawings

[0017] Figure 1 is a schematic structural view of the conveying bracket of the present invention;

[0018] Figure 2 is a schematic structural view of the mounting chassis of the present invention;

[0019] Figure 3 is a schematic structural view of the L-shaped bottom rod of the present invention;

[0020] Figure 4 is a schematic structural view of the side plate of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the side cross plate of the present invention;

[0022] Figure 6 It is a schematic structural diagram of the conveying rubber roller of the present invention;

[0023] Figure 7 It is a schematic structural diagram of the second transmission toothed belt of the present invention;

[0024] Figure 8 It is a schematic structural diagram of the first transmission toothed belt of the present invention.

[0025] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows: 1, conveying bracket; 11, conveying motor; 12, conveyor belt; 13, conveying roller; 14, mounting part; 2, mounting chassis; 21, mounting vertical frame; 22, first driving roller; 23, first bevel gear; 24, first spur gear; 25, first transmission toothed belt; 3, conveying rubber roller; 31, second spur gear; 32, second transmission toothed belt; 4, side plate; 41, second driving roller; 42, worm gear; 43, second bevel gear; 5, arc plate; 51, first telescopic rod; 52, side cross plate; 53, thread groove; 54, lead screw; 6, L-shaped bottom rod; 61, worm; 62, second telescopic rod. Specific embodiments

[0026] The following further describes the embodiments of the present invention in detail with reference to the drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] Please refer to Figure 1 - Figure 8, the present invention provides a feeding device for a new energy vehicle parts production line, including a conveying support 1, a conveying motor 11, a conveyor belt 12 and conveying rollers 13. A feeding mechanism for feeding automotive parts is provided on the conveying support 1, and an adjusting mechanism for adjusting the feeding mechanism is provided on the conveying support 1. The feeding mechanism includes a mounting chassis 2, conveying rubber rollers 3, side plates 4 and L-shaped bottom rods 6. The adjusting mechanism includes arc-shaped plates 5. The mounting chassis 2 is located at the upper end of the conveying support 1. The number of conveying rubber rollers 3 is at least two, and each conveying rubber roller 3 is rotatably mounted on the mounting chassis 2. The number of side plates 4 is two, and the two side plates 4 are respectively fixedly mounted at the lower end of the mounting chassis 2. The number of arc-shaped plates 5 is two, and the two arc-shaped plates 5 are both fixedly mounted at the lower end of the mounting chassis 2. The L-shaped bottom rod 6 is fixedly mounted at the side end of the side plate 4. A worm 61 is rotatably mounted at the side end of the L-shaped bottom rod 6. The thread lines on the two worms 61 are opposite. After adjusting the mounting chassis 2 and the conveying rubber rollers 3, the user can start the conveying motor 11 to drive the conveying rollers 13 to rotate, and then drive the conveyor belt 12 to rotate to feed the new energy vehicle parts. When the conveying rollers 13 rotate to drive the conveyor belts 12 on both sides to rotate, the rotation of the conveyor belts 12 on both sides will drive the worms 61 to rotate through the second telescopic rods 62. The thread lines on the two worms 61 are opposite, and the two worms 61 are respectively engaged with the two worm wheels 42. The rotation of the two worms 61 will drive the two worm wheels 42 to rotate in opposite directions;

[0028] The conveyor belt 12 is arranged on the conveying support 1. The conveying rollers 13 are located inside the conveyor belt 12. The conveying motor 11 is fixedly mounted on the conveying support 1. A mounting member 14 is fixedly mounted at the side end of the conveying support 1. In a new energy vehicle parts production line, for parts such as battery cells, modules and battery pack housings, specific equipment is required to feed them. When feeding new energy vehicle parts, the conveying motor 11 can be started to drive the conveying rollers 13 to rotate, and then drive the conveyor belt 12 to rotate, and the new energy vehicle parts are placed on the conveyor belt 12 for feeding;

[0029] A mounting vertical frame 21 is fixedly mounted at the upper end of the mounting chassis 2. A first driving roller 22 is rotatably mounted at the lower end of the mounting chassis 2. A first flat gear 24 is fixedly mounted at the circumferential end of the first driving roller 22. A first bevel gear 23 is fixedly mounted at the lower end of the first flat gear 24. The movement of the mounting chassis 2 will drive the conveying rubber rollers 3 on the mounting chassis 2 to move. The movement of the mounting chassis 2 will also drive the side plates 4 and the L-shaped bottom rods 6 to move. The movement of the L-shaped bottom rods 6 will drive the worms 61 to move closer to the side of the conveying support 1. At this time, the second telescopic rods 62 are compressed. The user can adjust the mounting chassis 2 on the other side in the same way. When the two mounting chassis 2 move closer to each other so that each conveying rubber roller 3 on the mounting chassis 2 can clamp the new energy vehicle parts, the adjustment of the two mounting chassis 2 on both sides is completed;

[0030] At the circumferential end of each conveying rubber roller 3 located in the lower section, a second spur gear 31 is fixedly installed. A first transmission belt 25 is meshed between the second spur gear 31 and the first spur gear 24. A second transmission belt 32 is meshed and sleeved at the circumferential end of each second spur gear 31. The rotation of the two worm wheels 42 drives the rotation of the two second transmission rollers 41. The rotation of the two second transmission rollers 41 drives the rotation of the two second bevel gears 43. The rotation of the two second bevel gears 43 drives the rotation of the two first bevel gears 23. The rotation of the two first bevel gears 23 drives the rotation of the first spur gear 24 through the first transmission roller 22. The rotation of the two first spur gears 24 drives the second spur gears 31 on both sides through the first transmission belt 25. When the two second spur gears 31 rotate, they drive the second transmission belt 32 to rotate. The second transmission belts 32 on both sides rotate in opposite directions, driving the two conveying rubber rollers 3 to rotate simultaneously. At this time, each conveying rubber roller 3 on the mounting chassis 2 on both sides rotates in the opposite direction. The opposite rotation of the conveying rubber rollers 3 on both sides cooperates with the conveyor belt 12 to convey and feed the new energy vehicle parts;

[0031] A second transmission roller 41 is rotatably installed at the side end of the side plate 4. A worm wheel 42 is fixedly installed at the circumferential end of the second transmission roller 41. A second bevel gear 43 is also fixedly installed at the circumferential end of the second transmission roller 41. The second bevel gear 43 is meshed with the first bevel gear 23. A side cross plate 52 is fixedly installed between the two arc plates 5. A thread groove 53 is penetrated and opened at the side end of the side cross plate 52. A first telescopic rod 51 is fixedly installed between the two arc plates 5 and the side end of the conveying support 1. A thread groove 53 is penetrated and opened at the side end of the side cross plate 52. A lead screw 54 is rotatably installed on the inner side wall of the mounting member 14. The lead screw 54 is threadedly installed on the inner side wall of the thread groove 53. A second telescopic rod 62 is fixedly installed between the worm 61 and the conveying roller 13. The worm 61 is meshed with the worm wheel 42. When feeding the new energy vehicle parts, the new energy vehicle parts can be placed on the conveyor belt 12. Before starting the conveyor belt 12 for feeding, the user can adjust the positions of the mounting chassis 2 on both sides. The user can rotate the lead screw 54. The rotation of the lead screw 54 drives the side cross plate 52 to move towards the conveying support 1 through the thread groove 53. The movement of the side cross plate 52 drives the two arc plates 5 to move. When the arc plates 5 move, they will compress the two first telescopic rods 51. The movement of the two arc plates 5 drives the conveying rubber roller 3 to move.

[0032] Working principle:

[0033] In the first step, in the new energy vehicle parts production line, for parts such as battery cells, modules, and battery pack casings, specific equipment is required for feeding. When feeding the new energy vehicle parts, the conveying motor 11 can be started to drive the conveying roller 13 to rotate, thereby driving the conveyor belt 12 to rotate, and placing the new energy vehicle parts on the conveyor belt 12 for feeding;

[0034] Second step, when loading new energy vehicle parts, the new energy vehicle parts can be placed on the conveyor belt 12. Before starting the conveyor belt 12 for loading, the user can adjust the positions of the two mounting chassis 2. The user can rotate the lead screw 54. When the lead screw 54 rotates, it drives the side cross plate 52 to move towards one side of the conveying support 1 through the thread groove 53. The movement of the side cross plate 52 drives the two arc-shaped plates 5 to move. When the arc-shaped plates 5 move, they will compress the two first telescopic rods 51. The movement of the two arc-shaped plates 5 drives the conveying rubber rollers 3 to move. The movement of the mounting chassis 2 drives the conveying rubber rollers 3 on the mounting chassis 2 to move. The movement of the mounting chassis 2 also drives the side plate 4 and the L-shaped bottom rod 6 to move. The movement of the L-shaped bottom rod 6 drives the worm 61 to move closer to one side of the conveying support 1. At this time, the second telescopic rod 62 is compressed. The user can use the same method to adjust the other mounting chassis 2. When the two mounting chassis 2 move closer to each other so that each conveying rubber roller 3 on the mounting chassis 2 can clamp the new energy vehicle parts, the adjustment of the two mounting chassis 2 is completed.

[0035] By setting the adjustable mounting chassis 2 and conveying rubber rollers 3, when transporting parts with different specifications and sizes such as battery cells, modules, and battery pack casings, the positions of the mounting chassis 2 and conveying rubber rollers 3 can be flexibly adjusted according to the size of the parts, so as to adapt to the spatial fixation requirements during the transportation of new energy vehicle parts. The adjustment is convenient and the adaptability is high.

[0036] By setting the adjustable mounting chassis 2 and conveying rubber rollers 3, when clamping and fixing new energy vehicle parts, different clamping forces can be applied to the new energy vehicle parts by adjusting the positions of the mounting chassis 2 and conveying rubber rollers 3 according to the different types of new energy vehicle parts. While ensuring the stability of loading and conveying, it can avoid damage caused by excessive clamping of new energy vehicle parts.

[0037] Step 3: After completing the adjustment of the installation chassis 2 and the conveying rubber rollers 3, the user can start the conveying motor 11 to drive the conveying roller 13 to rotate, and then drive the conveyor belt 12 to rotate for feeding the new energy vehicle parts. When the conveying roller 13 rotates to drive the conveyor belts 12 on both sides to rotate, the rotation of the conveyor belts 12 on both sides will drive the worm 61 to rotate through the second telescopic rod 62. The thread lines on the two worms 61 are opposite, and the two worms 61 are respectively engaged with the two worm wheels 42. The rotation of the two worms 61 will drive the two worm wheels 42 to rotate in opposite directions. The rotation of the two worm wheels 42 will drive the two second transmission rollers 41 to rotate. The rotation of the two second transmission rollers 41 will drive the two second bevel gears 43 to rotate. The rotation of the two second bevel gears 43 will drive the two first bevel gears 23 to rotate. The rotation of the two first bevel gears 23 drives the first spur gear 24 to rotate through the first transmission roller 22. The rotation of the two first spur gears 24 will drive the second spur gears 31 on both sides through the first transmission belt 25. When the two second spur gears 31 rotate, they will drive the second transmission belt 32 to rotate. The rotation of the second transmission belts 32 on both sides in opposite directions will drive the two conveying rubber rollers 3 to rotate simultaneously. At this time, each conveying rubber roller 3 on the installation chassis 2 on both sides will rotate in opposite directions. The rotation of the conveying rubber rollers 3 on both sides in opposite directions will cooperate with the conveyor belt 12 to convey and feed the new energy vehicle parts;

[0038] By setting the conveying rubber rollers 3 on both sides, the device forms a dynamic clamping force during the conveying process of new energy vehicle parts, forms a high adhesion contact with the surface of new energy vehicle parts, effectively inhibits the risk of slipping of new energy vehicle parts on the conveyor belt 12 while pushing the new energy vehicle parts for feeding, ensures the stable transmission and feeding of new energy vehicle parts, and offsets the inertial offset during the acceleration of the conveyor belt;

[0039] By setting the cooperation of the worm 61, the worm wheel 42 and the second bevel gear 43, the rotation speed of each conveying rubber roller 3 is the same as the rotation speed of the conveyor belt 12, effectively preventing the offset or surface wear of new energy vehicle parts caused by the speed difference, and realizing the high-efficiency synchronization and stability of the clamping and conveying of new energy vehicle parts;

[0040] By setting the cooperation of the worm 61 and the second telescopic rod 62, when adjusting the positions of the installation chassis 2 and the conveying rubber rollers 3 on both sides, through the telescopic of the second telescopic rod 62, while realizing the adjustment of the distance between the conveying rubber rollers 3, after adjustment, under the drive of the second telescopic rod 62, the rotation of the worm 61 can still be realized, and then drive each conveying rubber roller 3 to rotate to convey the battery, making the use of the device more flexible and ensuring its adaptation range on the basis of realizing stable transportation.

[0041] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention so as to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A feeding device for a new energy vehicle parts production line, comprising a conveying bracket (1), a conveying motor (11), a conveying belt (12) and a conveying roller (13), characterized in that: The conveying bracket (1) is provided with a feeding mechanism for feeding automobile parts, and the conveying bracket (1) is provided with an adjusting mechanism for adjusting the feeding mechanism; The feeding mechanism comprises a mounting base (2), a conveying rubber roller (3), a side plate (4) and an L-shaped bottom rod (6); the adjusting mechanism comprises an arc plate (5); the mounting base (2) is located at the upper end of the conveying bracket (1); the number of the conveying rubber rollers (3) is at least two, and each of the conveying rubber rollers (3) is rotatably mounted on the mounting base (2); the number of the side plates (4) is two, and the two side plates (4) are respectively fixedly mounted on the lower end of the mounting base (2); the number of the arc plates (5) is two, and the two arc plates (5) are fixedly mounted on the lower end of the mounting base (2); the L-shaped bottom rod (6) is fixedly mounted on the side end of the side plate (4); a worm (61) is rotatably mounted on the side end of the L-shaped bottom rod (6); and the thread lines on the two worms (61) are opposite.

2. The feeding device for the new energy vehicle parts production line as claimed in claim 1, characterized in that: The conveyor belt (12) is arranged on a conveyor bracket (1), the conveyor roller (13) is located inside the conveyor belt (12), the conveyor motor (11) is fixedly mounted on the conveyor bracket (1), and a mounting member (14) is fixedly mounted on the side end of the conveyor bracket (1).

3. The feeding device for the new energy vehicle parts production line as claimed in claim 2, characterized in that: A mounting stand (21) is fixedly mounted on the upper end of the mounting base (2), a first transmission roller (22) is rotatably mounted on the lower end of the mounting base (2), a first spur gear (24) is fixedly mounted on the circumferential end of the first transmission roller (22), and a first bevel gear (23) is fixedly mounted on the lower end of the first spur gear (24).

4. The feeding device for the new energy vehicle parts production line as claimed in claim 3, characterized in that: A second spur gear (31) is fixedly mounted on the circumferential end portion of each conveying rubber roller (3) located at the lower section, and a first conveying toothed belt (25) is meshed between the second spur gear (31) and the first spur gear (24).

5. The feeding device for the new energy vehicle parts production line as claimed in claim 4, characterized in that: The circumferential end of each of the second flat gears (31) is meshedly sleeved with a second transmission toothed belt (32).

6. The feeding device for the new energy vehicle parts production line as claimed in claim 5, characterized in that: A second transmission roller (41) is rotatably mounted on the side end of the side plate (4), a worm gear (42) is fixedly mounted on the circumferential end of the second transmission roller (41), and a second conical tooth (43) is also fixedly mounted on the circumferential end of the second transmission roller (41).

7. The feeding device for the new energy vehicle parts production line as claimed in claim 6, characterized in that: The second conical teeth (43) are meshed with the first conical gear (23), and a side transverse plate (52) is fixedly installed between the two arc-shaped plates (5).

8. The feeding and distributing device for the new energy vehicle parts production line as claimed in claim 7, characterized in that: A wire groove (53) is provided through the side end of the side transverse plate (52), and a first telescopic rod (51) is fixedly installed between the side ends of the two arc-shaped plates (5) and the conveying bracket (1).

9. The feeding device for the new energy vehicle parts production line as claimed in claim 8, characterized in that: A thread groove (53) is formed through the side end of the side transverse plate (52), and a threaded rod (54) is rotatably mounted on the inner side wall of the mounting member (14). The threaded rod (54) is threadably mounted on the inner side wall of the thread groove (53).

10. The feeding device for the new energy vehicle parts production line as claimed in claim 9, characterized in that: A second telescopic rod (62) is fixedly installed between the worm (61) and the conveying roller (13), and the worm (61) is meshed with the worm wheel (42).

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