CN212126721U

CN212126721U - Feeding device and marking machine

Info

Publication number: CN212126721U
Application number: CN202020300694.1U
Authority: CN
Inventors: 冯鹏君; 李包根
Original assignee: Shenzhen Junhao Engineering Co ltd
Current assignee: Shenzhen Junhao Engineering Co ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-12-11
Anticipated expiration: 2030-03-11

Abstract

The utility model is suitable for an automation equipment field provides a material feeding unit and marking machine. Wherein, material feeding unit includes: the carrier is used for carrying materials; the first operation platform is provided with a first guide rail which can be in sliding connection with the carrier, and the first guide rail is used for guiding the carrier to move along the operation direction; the second operation platform is arranged at an interval with the first operation platform, and is provided with a second guide rail which can be in sliding connection with the carrier and is used for guiding the carrier to move along the operation direction; and the translation mechanism is used for driving the carrier to slide from the first guide rail to the second guide rail along the operation direction until the carrier is borne by the second operation platform. The utility model provides a pushing structure can simplify the structure and improve the removal efficiency.

Description

Feeding device and marking machine

Technical Field

The utility model belongs to the automation equipment field especially relates to a material feeding unit and marking machine.

Background

Move the material from first work platform to with the second work platform that first work platform interval set up on, the mode that adopts the manipulator to snatch realizes mostly, and this kind of mode has the problem that the structure is complicated and removal efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide another kind of material feeding unit, it aims at solving the problem that the structure is complicated and removal efficiency is low.

A feeding device comprising:

the carrier is used for carrying materials;

the first operation platform is provided with a first guide rail which can be in sliding fit with the carrier, and the first guide rail is used for guiding the carrier to move along the operation direction;

the second operation platform is arranged at an interval with the first operation platform and is provided with a second guide rail which can be in sliding connection and matching with the carrier, and the second guide rail is used for guiding the carrier to move along the operation direction;

and the translation mechanism is used for driving the carrier to slide from the first guide rail to the second guide rail along the operation direction until the carrier is borne by the second operation platform.

Optionally, the translation mechanism includes a slide rail disposed on the first work platform, a slide block slidably connected to the slide rail, and a pushing member connected to the slide block, and the slide block moves along the slide rail and in the work direction to make the pushing member abut against and push the carrier to slide from the first guide rail to the second guide rail until the carrier is carried by the second work platform.

Optionally, the carrier is provided with an insertion groove, the pushing member can extend into the insertion groove and move along with the slider along the operation direction to push the carrier to slide from the first guide rail to the second guide rail until the carrier is borne by the second operation platform, and the pushing member can leave the insertion groove and move along with the slider away from the operation direction to reset.

Optionally, the insertion groove is opened on a surface of the carrier facing the pushing member and extends to a surface facing the working direction.

Optionally, the operation direction is the right direction, and the left groove wall of the putting groove is an inclined guide surface.

Optionally, the pushing member is rotationally connected to the sliding block, the translating mechanism further includes an elastic member acting on the pushing member, the pushing member extends into the insertion slot and moves along the sliding rail in the operating direction to push the carrier to slide from the first guide rail to the second guide rail until the carrier is borne by the second operating platform, when the sliding block moves in the direction away from the operating direction along the sliding rail, the pushing member rotates forward under the collision action of the insertion slot to leave the insertion slot and moves in the direction away from the operating direction relative to the carrier under the collision action of the carrier, and when the collision action from the carrier disappears, the pushing member rotates backward under the elastic restoring force of the elastic member to restore the original state.

Optionally, the translation mechanism further includes a fixed member connected to the sliding block and spaced from the pushing member, and a limiting member connected to the pushing member and located between the fixed member and the pushing member, and the elastic member is located between the fixed member and the pushing member;

when the sliding block moves along the sliding rail to the operation direction, the limiting part abuts against the fixing part to limit the pushing part to rotate reversely, the pushing part pushes the carrier to slide from the first guide rail to the second guide rail until the carrier is borne by the second operation platform, when the sliding block moves along the sliding rail to the direction departing from the operation direction, the pushing part rotates forwards under the collision action of the carrier to leave the insertion groove and moves along the direction departing from the operation direction relative to the carrier under the collision action of the carrier, and when the collision action from the carrier disappears, the pushing part rotates reversely under the elastic restoring force of the elastic part to restore the original state.

Optionally, the second work platform may be able to rotate in situ such that the first guide track is inverted end to end.

Optionally, the length of the second work platform in the work direction can only independently bear one carrier.

A marking machine comprises the feeding device.

The application provides a material feeding unit's beneficial effect lies in: compared with the prior art, the feeding device provided by the application has the advantages that the first operation platform and the second operation platform are arranged at intervals, so that the first operation platform and the second operation platform can independently operate. The first operation platform and the second operation platform are respectively provided with a first guide rail and a second guide rail, the first guide rail and the second guide rail can be in sliding connection with the carrier and used for guiding the carrier to move along the operation direction, so that the carrier is turned over from the first guide rail to the second guide rail to provide necessary conditions, the translation mechanism provides acting force towards the operation direction for the carrier, so that the carrier slides from the first guide rail to the second guide rail until the carrier is borne by the second operation platform, the carrier can be separated from the first operation platform, and at the moment, the carrier is borne by the second operation platform and has the condition of moving along with the second operation platform without interference of the first operation platform. In conclusion, the feeding device provided by the application can realize the purpose that the carrier is transferred to the second operation platform at the first operation platform through the matching design of the translation mechanism, the first guide rail and the second guide rail, and compared with the design that the manipulator snatchs and transfers, the structure can be simplified and the moving efficiency can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a first partial schematic view of a feeding device provided in an embodiment of the present application;

fig. 2 is a partial schematic view of a feeding device according to an embodiment of the present application;

FIG. 3 is another view of the structure of FIG. 2;

FIG. 4 is a schematic view of a carrier according to an embodiment of the present application;

fig. 5 is a partially enlarged view of fig. 2 at B.

Wherein, in the figures, the respective reference numerals:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Carrier tool	50	Translation mechanism
20	Material(s)	51	Sliding rail
				11	Put into groove	52	Sliding block
30	First work platform	53	Pusher member
				40	Second work platform	54	Connecting shaft
41	Rotary cylinder	55	Fixing piece
				42	Push plate	56	Position limiting piece
		57	Propelling cylinder

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be further noted that, in the embodiment of the present invention, the XYZ rectangular coordinate system established in fig. 1 is defined: one side in the positive direction of the X axis is defined as the front, and one side in the negative direction of the X axis is defined as the back; one side in the positive Y-axis direction is defined as the left side, and one side in the negative Y-axis direction is defined as the right side; the side in the positive direction of the Z axis is defined as the upper side, and the side in the negative direction of the Z axis is defined as the lower side.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Example one

Referring to fig. 1 to 5 together, a feeding device provided in an embodiment of the present application will be described. A feeding device comprises a carrier 10, a first operation platform 30, a second operation platform 40 and a translation mechanism 50.

The carrier 10 is used for carrying the material 20.

The first work platform 30 has a first guide rail capable of being in sliding fit with the vehicle 10, and the first guide rail is used for guiding the vehicle 10 to move along the work direction. For convenience of description, the working direction is defined as a rightward direction.

The second work platform 40 is spaced apart from the first work platform 30, and the second work platform 40 has a second guide rail capable of slidably engaging with the vehicle 10, and the second guide rail is used for guiding the vehicle 10 to move along the work direction. The first guide rail and the second guide rail have the same cross section and the same extending direction. The carrier 10 is slidably connected to the first guide rail by a groove and a bump, when the carrier 10 is provided with the groove, the first guide rail has the bump matched with the groove, or vice versa, the groove is provided on the first guide rail, and the bump is provided on the carrier 10.

The translation mechanism 50 is used to drive the vehicle 10 to slide from the first guide rail to the second guide rail in the working direction until the vehicle 10 is carried by the second working platform 40.

It is unambiguous that the distance between the second work platform 40 and the first work platform 30 is smaller than the length of the vehicle 10 in the working direction, so that the vehicle 10 does not fall out of the distance between the first work platform 30 and the second work platform 40 during sliding from the first guide rail to the second guide rail.

It should be noted that the distance between the second work platform 40 and the first work platform 30 may be set so long as interference between the first work platform 30 and the second work platform 40 does not occur. For example, the second work platform 40 is rotated, the spacing is such that the dimensional space requirement for the rotation of the second work platform 40 is met. If the second work platform 40 and the first work platform 30 are fixed relative to each other, the distance may be zero.

Compared with the prior art, the feeding device provided by the embodiment has the advantages that the first working platform 30 and the second working platform 40 are arranged at intervals, so that the first working platform 30 and the second working platform 40 can work independently. The first work platform 30 and the second work platform 40 are respectively provided with a first guide rail and a second guide rail, both of which can be in sliding contact with the carrier 10 and used for guiding the carrier 10 to move along the work direction, so that the carrier 10 is transferred from the first guide rail to the second guide rail to provide necessary conditions, the translation mechanism 50 provides acting force towards the work direction to the carrier 10 to enable the carrier 10 to slide from the first guide rail to the second guide rail until the carrier 10 is borne by the second work platform 40, so that the carrier 10 can be separated from the first work platform 30, at this time, the carrier 10 is borne by the second work platform 40 and has the condition of moving along with the second work platform 40 without interference of the first work platform 30. The feeding device provided by the embodiment, the matching design of the translation mechanism 50, the first guide rail and the second guide rail, compared with the design of grabbing and transferring by a manipulator, can simplify the structure and improve the moving efficiency.

In another embodiment of the present application, the translation mechanism 50 is disposed on the first work platform 30. In other embodiments, the translation mechanism 50 may be provided independently from the first work platform 30, as long as the pushing of the vehicle 10 is realized.

In another embodiment of the present application, referring to fig. 3 and fig. 5, the translating mechanism 50 includes a slide rail 51 disposed on the first work platform 30, a slide block 52 slidably connected to the slide rail 51, and a pushing member 53 connected to the slide block 52, wherein the slide block 52 moves along the slide rail 51 in the work direction to make the pushing member 53 abut on and push the carrier 10 to slide from the first guide rail to the second guide rail until the carrier 10 is carried by the second work platform 40. The extending direction of the slide rail 51 is parallel to the extending direction of the first guide rail, the linear reciprocating motion (moving towards the working direction or departing from the working direction, namely, left-right reciprocating motion) of the pushing piece 53 is ensured by the matching arrangement of the slide rail 51 and the slide block 52, and the structure is simple and easy to operate and control.

In the illustrated construction, the slider 52 is provided with a leftward or rightward driving force by the push cylinder 57.

In another embodiment of the present application, referring to fig. 4 and 5, the carrier 10 is provided with an insertion slot 21, the pushing member 53 can extend into the insertion slot 21 and move along with the slider 52 along the operation direction to push the carrier 10 to slide from the first guide rail to the second guide rail until the carrier 10 is carried by the second operation platform 40, and the pushing member 53 can leave the insertion slot 21 and move along with the slider 52 away from the operation direction to be reset.

The pushing member 53 may be a telescopic rod structure, and the pushing member 53 extends into the insertion groove 21 to be clamped with the carrier 10, in this case, the pushing member 53 moves along with the slide block 52 to the right, so that the carrier 10 moves together to the right. After the carrier 10 reaches the target position (the carrier 10 is completely carried by the second work platform 40), the pushing member 53 is retracted and departs from the placing groove 21, in which case the slide block 52 moves leftward and is reset to wait for the next carrier 10 to be pushed. The pushing member 53 may be provided as a resilient latch or other structure by those skilled in the art, and is not limited herein.

In the illustrated structure, the insertion groove 21 is opened on a surface of the carrier 10 facing the pusher 53 and extends to a surface facing the working direction. In the case where the pushing member 53 is taken as an expansion link, the carriers 10 are arranged along the first guide rail, the right side surface of the carrier 10 located on the left side (referred to as a left carrier 10 for short) of the two adjacent carriers 10 abuts against the left side surface of the carrier 10 located on the right side (referred to as a right carrier 10 for short), the right side of the insertion groove 21 of the left carrier 10 is the left side surface of the right carrier 10, the pushing member 53 is inserted into the insertion groove 21, and in this case, the slider 52 drives the pushing member 53 to move rightward together, so that the pushing member 53 applies a rightward force to the left side surface of the right carrier 10, and the right carrier 10 also moves rightward together. Compared with the design that the carrier 10 is provided with the groove 21 at other positions of the surface facing the pushing piece 53, the design can simplify the structure and reduce the influence of the groove on the structural strength of the carrier 10.

In another embodiment of the present application, referring to fig. 2 and 4, the left groove wall of the insertion groove 21 is an inclined guide surface. This design can reduce the difficulty of the pusher member 53 leaving the placement groove 21.

In another embodiment of the present application, the pushing member 53 is rotatably connected to the sliding block 52, the translating mechanism 50 further includes an elastic member acting on the pushing member 53, the pushing member 53 extends into the insertion slot 21 and pushes the carrier 10 to slide from the first guiding rail to the second guiding rail along the sliding rail 51 moving in the operation direction along the sliding rail 52 until the carrier 10 is carried by the second operation platform 40, when the sliding block 52 moves in the operation direction away from the sliding rail 51, the pushing member 53 rotates forward under the interference of the insertion slot 21 and leaves the insertion slot 21 and moves in the operation direction away from the operation direction relative to the carrier 10 under the interference of the carrier 10, and rotates backward under the elastic restoring force of the elastic member to restore the original shape when the interference from the carrier 10 disappears. In the illustrated construction, the pushing member 53 is rotatably connected to the slider 52 by a connecting shaft 54. The design of the pushing piece 53, the elastic piece and the connecting shaft 54 replaces the design of a telescopic rod, so that the operation of extending the pushing piece 53 into and out of the placing groove 21 is realized by the linkage action of a pure mechanical structure without the participation of a motor, and the method is favorable for reducing the cost and simplifying the control.

In another embodiment of the present application, referring to fig. 2 and 5, the translating mechanism 50 further includes a fixing member 55 connected to the sliding block 52 and spaced apart from the pushing member 53, and a limiting member 56 connected to the pushing member 53 and located between the fixing member 55 and the pushing member 53, wherein the elastic member is located between the fixing member 55 and the pushing member 53;

when the slide block 52 moves along the slide rail 51 in the working direction, the limiting member 56 abuts against the fixing member 55 to limit the pushing member 53 to rotate reversely, the pushing member 53 pushes the carrier 10 to slide from the first guide rail to the second guide rail until the carrier 10 is carried by the second working platform 40, when the slide block 52 moves along the slide rail 51 in the direction away from the working direction, the pushing member 53 rotates forward under the collision action of the carrier 10 to leave the insertion slot 21 and moves in the direction away from the working direction relative to the carrier 10 under the collision action of the carrier 10, and rotates reversely under the elastic restoring force of the elastic member to restore the original shape when the collision action from the carrier 10 disappears. The fixing member 55 and the elastic member are respectively located at the left and right sides of the connecting shaft 54, and both the fixing member 55 and the elastic member provide an acting force towards the carrier 10 to the pushing member 53, so that the connecting shaft 54 is used as a fixed point to form rotating moments in opposite directions. The concrete points are as follows: the stopper 56 abuts on the fixing member 55 to restrict the pushing member 53 from rotating in the reverse direction (clockwise rotation in the figure), and does not restrict the pushing member 53 from rotating in the forward direction (counterclockwise rotation in the figure). The elastic member is a compression spring, and two ends of the elastic member are respectively connected with the fixing member 55 and the pushing member 53, and the connection point of the elastic member and the pushing member 53 is located on the right side of the connection shaft 54. When the pushing member 53 is rotated in the forward direction by the external force, the elastic member is compressed, and after the external force disappears, the pushing member 53 together with the elastic member is restored by the elastic restoring force.

In the present embodiment, the pushing member 53 extends into the insertion groove 21 in the initial state, and at this time, the pushing member 53 is not subjected to the acting force from the stopper 56 or the elastic member, or is balanced by the two acting forces (ignoring the supporting force and the gravity). In this case, the slider 52 moves rightward, and the pusher 53 abuts against the left side surface of the right carrier 10 and receives a clockwise torque from the abutment force, and the torque is balanced by the limit of the stopper 56 and the fixing member 55, so that the pusher 53 can drive the carriers 10 to move rightward together. After the vehicle 10 is pushed to the target position (the second work platform 40), the slider 52 stops moving rightward, and the pushing member 53 is not acted by the left side surface of the right vehicle 10 and the fixing member 55. In this case, the slider 52 moves leftward, and at this time, the pushing member 53 is pressed by the left carrier 10 to rotate counterclockwise, the elastic member is pressed until the pushing member 53 passes over the left carrier 10 and is located above the insertion groove 21 of the other carrier 10 on the left of the left carrier 10, the force from the left carrier 10 disappears, the elastic member is restored by the elastic restoring force, and the pushing member 53 is inserted into the insertion groove 21.

In another embodiment of the present application, referring to fig. 5, the pushing member 53 is a right triangle, the connecting shaft 54 is disposed at one acute angle, and the right-angle side of the pushing member 53 away from the connecting shaft 54 can abut against the pressure-receiving surface. The pushing part 53 is designed as a right-angle triangle, on one hand, the pushing part 53 is inserted into the placing groove 21 to be a small sharp-angled area, so that the size of a space required to be formed in the placing groove 21 is reduced, and the difficulty of the pushing part 53 leaving the placing groove 21 is further reduced by combining the design that the left groove wall of the placing groove 21 is an inclined guide surface, and the pushing part 53 is favorable for stable movement. On the other hand, the edge of the pushing member 53 close to the fixing member 55 is a right-angled edge, which facilitates the matching arrangement of the limiting member 56, the elastic member and the fixing member 55.

The person skilled in the art can set the angle of inclination of the guide surface and the acute angle of the right-angled triangle as desired.

In another embodiment of the present application, referring to fig. 1, the second work platform 40 can rotate in situ to end-up and invert the first guide track. In the illustrated structure, the second work platform 40 cooperates with the push plate 42 to fix the carrier 10, and the rotary cylinder 41 is provided, and the rotary cylinder 41 acts on the second work platform 40 to drive the second work platform 40 to rotate together with the carrier 10 and the push plate 42.

The carrier 10 is provided with a limiting hole, the push plate 42 is provided with a limiting column matched with the limiting hole, and the limiting column can move towards or away from the limiting hole so as to be inserted into or leave the limiting hole. When the carrier 10 moves to the second work platform 40, the limiting posts are inserted into the limiting holes to align the push plate 42 and the second work platform 40. In this embodiment, the length of the second work platform 40 in the work direction can only independently bear one carrier 10, so that only one carrier 10 is completely placed in the second work platform 40 at a time, thereby avoiding the operation that when one carrier 10 is completely placed in the receiving table, another carrier 10 bridges the first guide rail and the second guide rail, which results in the second work platform 40 not rotating. The length of the second work platform 40 in the left-right direction is the length of the second guide rail. Preferably, the length of the second work platform 40 in the left-right direction is equal to the size of the vehicle 10 in the left-right direction.

In other embodiments, the length of the second work platform 40 in the left-right direction may be set to be an integral multiple of the size of the vehicle 10 by those skilled in the art, and is not limited herein.

Example two

The application also provides a marking machine, including material feeding unit as above-mentioned. Please refer to the first embodiment for the specific structure of the feeding device. Since the marking machine of the present application adopts all the technical solutions of all the above-mentioned first embodiments, all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are also achieved, and are not repeated herein.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A feeding device, comprising:

a carrier (10) for carrying material (20);

a first work platform (30) having a first guide rail capable of sliding engagement with the vehicle (10), the first guide rail being for guiding the vehicle (10) to move in a work direction;

the second operation platform (40) is arranged at an interval with the first operation platform (30), the second operation platform (40) is provided with a second guide rail which can be in sliding fit with the carrier (10), and the second guide rail is used for guiding the carrier (10) to move along the operation direction;

-a translation mechanism (50) for driving the vehicle (10) in the work direction to slide from the first guide rail to the second guide rail until the vehicle (10) is carried by the second work platform (40).

2. The feeding device according to claim 1, wherein the translation mechanism (50) comprises a slide rail (51) provided on the first work platform (30), a slide block (52) slidably connected to the slide rail (51), and a pushing member (53) connected to the slide block (52), wherein the slide block (52) moves along the slide rail (51) in the work direction to abut against the pushing member (53) and push the vehicle (10) to slide from the first guide rail to the second guide rail until the vehicle (10) is carried by the second work platform (40).

3. The feeding device according to claim 2, characterised in that the carrier (10) is provided with an insertion slot (11), the pushing element (53) being able to extend into the insertion slot (11) and to push the carrier (10) to slide from the first guide rail to the second guide rail as the slide (52) moves in the work direction until the carrier (10) is carried by the second work platform (40), the pushing element (53) being able to leave the insertion slot (11) and to return as the slide (52) moves away from the work direction.

4. The feeding device according to claim 3, characterised in that the insertion slot (11) opens onto the surface of the carrier (10) facing the pusher (53) and extends to the surface facing the working direction.

5. Feeding device according to claim 4, characterised in that the working direction is the right direction and the left wall of the insertion groove (11) is an inclined guiding surface.

6. The feeding device according to claim 3, characterised in that the pusher (53) is rotationally coupled to the slider (52), in that the translation mechanism (50) further comprises an elastic element acting on the pusher (53), in that the pusher (53) extends into the insertion slot (11) and pushes the vehicle (10) to slide from the first guide rail to the second guide rail as the slider (52) moves along the slide (51) in the work direction until the vehicle (10) is carried by the second work platform (40), in that, when the slider (52) moves along the slide (51) away from the work direction, the pusher (53) rotates forward under the interference of the insertion slot (11) away from the insertion slot (11) and moves with respect to the vehicle (10) in a direction away from the work direction under the interference of the vehicle (10), and reversely rotates under the elastic restoring force of the elastic piece and restores to the original shape when the interference action from the carrier (10) disappears.

7. The feeding device according to claim 6, wherein the translation mechanism (50) further comprises a fixed member (55) connected to the sliding block (52) and spaced apart from the pushing member (53), and a limiting member (56) connected to the pushing member (53) and located between the fixed member (55) and the pushing member (53), the elastic member being located between the fixed member (55) and the pushing member (53);

when the sliding block (52) moves along the sliding rail (51) in the working direction, the limiting piece (56) abuts against the fixing piece (55) to limit the pushing piece (53) to rotate reversely, the push member (53) pushes the vehicle (10) to slide from the first guide rail to the second guide rail, and when the carrier (10) is carried by the second working platform (40) and the slide block (52) moves along the slide rail (51) to the direction away from the working direction, the pushing piece (53) rotates forwards under the interference action of the carrier (10) to leave the inserting groove (11) and moves along the direction departing from the working direction relative to the carrier (10) under the interference action of the carrier (10), and reversely rotates under the elastic restoring force of the elastic piece and restores to the original shape when the interference action from the carrier (10) disappears.

8. Feeding device according to any one of claims 1-7, characterised in that the second work platform (40) can be turned in situ such that the first guide track is turned upside down.

9. The feeding device according to claim 8, characterised in that the length of the second work platform (40) in the work direction is capable of carrying only one of the vehicles (10) independently.

10. A marking machine comprising a feeding device according to any one of claims 1 to 9.