1. The ultrathin transfer machine comprises a rack (1) and a plurality of main conveying rollers (12) which are arranged on the rack (1) and driven by a conveying belt (11), wherein the rack (1) comprises a plurality of support legs (13); the device is characterized by also comprising two auxiliary conveying devices (2) which are symmetrically arranged on the rack (1) and can be used for increasing the conveying width;

the auxiliary conveying device (2) comprises a roller frame (21) and a rotating arm (22) which is hinged on the supporting leg (13) and connected with the roller frame (21), and a plurality of auxiliary conveying rollers (23) arranged along the conveying direction are arranged on the roller frame (21); the rotating arm (22) is of a right-angle bending structure, and when the rotating arm (22) rotates around the rotation center of the rotating arm (22), the auxiliary conveying roller (23) can rotate to be flush and coaxial with the main conveying roller (12) from a natural sagging state;

the transfer machine also comprises a fixing structure (3) for fixing the roller frame (21) when the auxiliary conveying roller (23) rotates to be flush and coaxial with the main conveying roller (12) from a natural sagging state.

2. Ultra-thin transfer machine according to claim 1, characterized in that said fixed structure (3) comprises a connecting rod (31), a sliding block (32) hinged with one end of said connecting rod (31), a threaded post (33) arranged on said sliding block (32), a locking nut (34) arranged on said threaded post (33), the other end of said connecting rod (31) is hinged with said roller frame (21), said support leg (13) is provided with a sliding slot (14) for mounting said sliding block (32), said threaded post (33) passes through said sliding slot (14).

3. Ultra-thin transfer as claimed in claim 1, characterized in that said rotating arm (22) comprises a rotating part (221) connected to said leg (13) and a roller frame connecting part (222) connected perpendicularly to said rotating part (221).

4. Ultra-thin transfer machine according to claim 1, characterized in that the supporting leg (13) is further provided with a positioning block (15) for assisting in determining the rotation angle of the rotating arm (22).

5. The ultra-thin transfer machine as claimed in claim 1, wherein the roller frame (21) is provided in a plurality, each roller frame (21) is provided with a support leg (13), and each roller frame (21) is connected with the support leg (13) through a rotating arm (22); the roller frame (21) is provided with a mounting groove (210) for mounting the auxiliary conveying roller (23), the top of the mounting groove (210) is of an open structure, the auxiliary conveying roller (23) is mounted in the mounting groove (210), and the top of the auxiliary conveying roller is higher than the upper surface of the roller frame (21).

6. Ultra-thin transfer as claimed in claim 1, characterized in that said roller frame (21) is of a box structure.

7. Ultra-thin transfer machine according to claim 1, characterized in that said secondary conveyor rollers (23) are hollow, having an axial central through hole.

8. Ultra-thin transfer machine according to claim 7, characterized in that a butt joint rod (24) is arranged in the axial central through hole, a stop block (241) is arranged on the butt joint rod (24) and is positioned at two sides of the auxiliary conveying roller (23), a butt joint groove (121) is arranged at the end part of the main conveying roller (12), and a butt joint head (242) which is butted with the butt joint groove (121) is arranged at the end part of the butt joint rod (24).

9. The ultra-thin transfer machine as claimed in claim 8, wherein the butt-joint groove (121) and the butt-joint head (242) are both cross-shaped.

Background

The transfer machine is an important component applied to a logistics production line, the conveying width of the transfer machine is an important factor influencing the site floor area and layout of the transfer machine, the larger the conveying width is, the larger the thickness of the transfer machine is, the larger the floor area is, the smaller the conveying width is, the smaller the thickness of the transfer machine is and the smaller the floor area is, and therefore, the thinning of the conveying width is a design choice when the site area is smaller.

However, in the existing ultra-thin transfer machine { thickness is generally less than 25cm, and transport width is less than 20cm } after on-site assembly, it is difficult to adjust the transport width, and for large transport objects, it is difficult to load large transport objects with a small transport width, so it is an important research direction of the present application to design an ultra-thin transfer machine capable of increasing the transport width as needed to ensure sufficient transfer of the transport objects.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides an ultrathin transfer machine, when the width of a main conveying roller is taken as the conveying width of the transfer machine, the width of the transfer machine is smaller, the transfer machine is in an ultrathin state, the transfer machine in the ultrathin state can achieve the purpose of reducing the occupied area, and the transfer machine can also adjust the conveying width as required when the width of conveyed articles is larger than the width of the main conveying roller.

The ultrathin transfer machine comprises a rack and a plurality of main conveying rollers which are arranged on the rack and driven by a conveying belt, wherein the rack comprises a plurality of support legs; the device is characterized by also comprising two auxiliary conveying devices which are symmetrically arranged on the rack and can be used for increasing the conveying width;

the auxiliary conveying device comprises a roller frame and a rotating arm hinged to the support leg and connected with the roller frame, and a plurality of auxiliary conveying rollers arranged along the conveying direction are arranged on the roller frame; the rotating arm is of a right-angle bending structure, and when the rotating arm rotates around the rotation center of the rotating arm, the auxiliary conveying roller can rotate from a natural drooping state to a state flush and coaxial with the main conveying roller;

the transfer machine also comprises a fixing structure for fixing the roller frame when the auxiliary conveying roller rotates to be flush and coaxial with the main conveying roller from a natural sagging state.

When the auxiliary conveying rollers are in a naturally drooping state, the width of the main conveying rollers is used as the conveying width of the transfer machine by the transfer machine, the width of the transfer machine is smaller, the transfer machine is in an ultrathin state, the transfer machine in the state can achieve the purpose of reducing the occupied area, and when the width of conveyed objects is larger than that of the main conveying rollers, the auxiliary conveying rollers are rotated to be flush and coaxial with the main conveying rollers from the naturally drooping state through the rotation of the roller frame, so that the conveying width of the transfer machine is increased, and the purpose of increasing the conveying width as required is achieved.

Preferably, the fixed knot constructs including the connecting rod, with connecting rod one end looks articulated sliding block, set up the screw thread post on the sliding block, set up lock nut on the screw thread post, the other end of connecting rod with the roller frame is articulated mutually, be provided with on the stabilizer blade and be used for installing the spout of sliding block, the screw thread post passes the spout. When the auxiliary conveying roller rotates to be flush and coaxial with the main conveying roller, the roller frame after rotation is fixed by tightly pressing the locking nut on the supporting leg, and after the roller frame is fixed by the fixing structure, the connecting rod in the fixing structure supports the roller frame, so that the roller frame is supported and reinforced; when the transfer machine needs to be switched to an ultrathin state, only the locking nut needs to be loosened, the roller frame swings and resets under the action of self gravity, and the auxiliary conveying roller returns to a natural drooping state again, so that the operation is simple and convenient.

Preferably, the rotating arm includes a rotating portion connected to the supporting leg, and a roller frame connecting portion vertically connected to the rotating portion.

Preferably, the supporting foot is further provided with a positioning block for assisting in determining the rotation angle of the rotating arm.

Preferably, the number of the roller frames is multiple, each roller frame is correspondingly provided with a support leg, and each roller frame is connected with the support leg through a rotating arm; the roller frame is provided with a mounting groove for mounting the auxiliary conveying roller, the top of the mounting groove is of an opening structure, the auxiliary conveying roller is mounted in the mounting groove, and the top of the auxiliary conveying roller is higher than the upper surface of the roller frame. Generally speaking, in the transfer machine, the conveying length of the auxiliary conveying device is equivalent to the conveying length formed by a plurality of main conveying rollers, when the conveying path is long, only one roller frame consistent with the conveying length is arranged in the conveying direction, the rotating difficulty of the roller frame is greatly increased, therefore, in the technical scheme, the auxiliary conveying device utilizes the auxiliary conveying rollers on the plurality of roller frames to match the main conveying rollers to complete conveying, each roller frame can independently rotate and be fixed, therefore, when the conveying width of the transfer machine is actually increased, the operation can be completely completed by one person, the operation is simple and convenient, and after the auxiliary conveying rollers are installed in the installation groove, the tops of the auxiliary conveying rollers are higher than the upper surface of the roller frame, and the smooth conveying is ensured.

Preferably, the roller frame is of a square frame structure.

Preferably, the auxiliary conveying roller is of a hollow structure and is provided with an axial central through hole.

Preferably, a butt joint rod is arranged in the axial center through hole, limiting blocks located on two sides of the auxiliary conveying rollers are arranged on the butt joint rod, a butt joint groove is formed in the end portion of the main conveying roller, and a butt joint head in butt joint with the butt joint groove is arranged on the end portion of the butt joint rod. The butt joint is in butt joint with the butt joint groove, so that the auxiliary conveying rollers can obtain the same rotating speed as the main conveying rollers, and the objects can be conveyed smoothly.

Preferably, the butt joint groove and the butt joint are both of a cross structure.

In conclusion, the invention has the following beneficial effects:

1: when the width of the main conveying roller is used as the conveying width of the transfer machine, the width of the transfer machine is smaller, the transfer machine is in an ultrathin state, the transfer machine in the state can achieve the purpose of reducing the occupied area, and the width of the transfer machine can be increased as required when the width of the conveyed object is larger than the width of the main conveying roller;

2: the fixing structure plays a role in supporting and reinforcing the roller frame while fixing the rotating arm, and the roller frame swings and resets under the action of self gravity only by loosening the locking nut, so that the operation is simple and convenient;

3: the butt joint is in butt joint with the butt joint groove, so that the auxiliary conveying rollers can obtain the same rotating speed as the main conveying rollers, and the objects can be conveyed smoothly.

Drawings

FIG. 1 is a schematic view of a transfer machine in which a sub-conveyor is increased in conveying width;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic diagram of the construction of the rotating arm;

fig. 4 is a schematic view of the transfer machine in a state where the sub conveyor is naturally suspended;

FIG. 5 is a schematic view of the mounting of the secondary feed rollers on the roller housing;

FIG. 6 is a partial cross-sectional mounting view of the secondary feed roller on the roller housing;

fig. 7 is a diagram of the docking between the docking lever and the main feed roller.

Detailed Description

The invention will be further explained by means of specific embodiments with reference to the drawings.

Example 1: as shown in fig. 1-5, the ultra-thin transfer machine includes a frame 1, a plurality of main conveyor rollers 12 disposed on the frame 1 and driven by a conveyor belt 11, the plurality of main conveyor rollers 12 are linearly distributed, the conveying width of the main conveyor rollers 12 is below 20cm, the frame 1 is provided with a plurality of support legs 13, and the transfer machine in this embodiment further includes two auxiliary conveying devices 2 symmetrically disposed on the frame 1 and capable of increasing the conveying width;

specifically, the auxiliary conveyor 2 includes a roller frame 21 and a rotating arm 22 connected to the roller frame 21, the roller frame 21 is provided with a plurality of auxiliary conveyor rollers 23 arranged along the conveying direction, one end of the rotating arm 22 is hinged to a supporting leg 13, a hinge point between the rotating arm 22 and the supporting leg 13 is located below the main conveyor roller 12, the rotating arm 22 is a right-angle bending structure and includes a rotating part 221 connected to the supporting leg 13 and a roller frame connecting part 222 perpendicularly connected to the rotating part 221, the roller frame connecting part 222 is connected to a part of the roller frame 21 close to the rotation center of the rotating arm 22, and the rotating arm 22 of the right-angle bending structure can rotate the auxiliary conveyor roller 23 from a natural drooping state to a state flush and coaxial with the main conveyor roller 12 when rotating around the rotation center of the rotating arm 22 The roller frame 21 is correspondingly provided with two rotating arms 22, and the two rotating arms 22 are symmetrically distributed on the front frame beam 211 and the rear frame beam 212 of the roller frame 21. In this sub-conveyor 2, when the force is not applied by human, the sub-conveyor 2 is in a naturally drooping state, and the sub-conveyor rollers 23 in the sub-conveyor 2 are also in a naturally drooping state, and in this state, the width of the main conveyor rollers 12 is taken as the conveying width of the transfer machine, the width of the transfer machine is substantially equivalent to the conveying width of the main conveyor rollers 12, the width of the transfer machine is small, and the transfer machine is in an ultra-thin state, and the transfer machine in this state can achieve the purpose of reducing the area occupation, and it is thought that the effect of "the width of the transfer machine is substantially equivalent to the conveying width of the main conveyor rollers 12" can be achieved by designing the roller frame connecting portion 222 to be as short as possible; when the width of the conveyed object is larger than that of the main conveying roller 12, so that the width of the main conveying roller 12 is difficult to meet the bearing requirement, at the moment, external force can be applied to enable the rotating arm 22 to rotate around the rotating center of the rotating arm 22, and the auxiliary conveying roller 23 rotates to be flush and coaxial with the main conveying roller 12 from a natural sagging state, so that the conveying width of the transfer machine is increased, and the purpose of increasing the conveying width as required is achieved;

the transfer machine further comprises a fixing structure 3 for fixing the roller frame 21 when the auxiliary conveying roller 23 rotates from a naturally drooping state to a state of being flush and coaxial with the main conveying roller 12, wherein the fixing structure 3 can be a pin for fixing the rotating arm 22 on the supporting leg 13 through the rotating arm 22 to achieve the purpose of indirectly fixing the roller frame 21, in this embodiment, the fixing structure 3 comprises a connecting rod 31, a sliding block 32 hinged to one end of the connecting rod 31, a threaded column 33 arranged on the sliding block 32, and a locking nut 34 arranged on the threaded column 33, the other end of the connecting rod 31 is hinged to the roller frame 21, the supporting leg 13 is provided with a sliding groove 14 for mounting the sliding block 32, and the threaded column 33 penetrates through the sliding groove 14. When the roller frame 21 rotates around the rotation center of the rotation arm 22, the sliding block 32 slides in the sliding groove 14, the connecting rod 31 makes rotation movement, when the auxiliary conveying roller 23 rotates to be flush and coaxial with the main conveying roller 12, the rotated roller frame 21 is fixed by screwing the locking nut 34 to press the roller frame against the supporting leg 13, and after the roller frame 21 is fixed by the fixing structure 3, the connecting rod 31 in the fixing structure 3 supports the roller frame 21, so that the roller frame 21 is supported and reinforced; when the transfer machine needs to be switched to an ultrathin state, only the locking nut 34 needs to be loosened, the roller frame 21 swings and resets under the action of self gravity, and the auxiliary conveying roller 23 returns to a natural sagging state again, so that the operation is simple and convenient.

The supporting leg 13 is further provided with a positioning block 15 for assisting in determining a rotation angle of the rotating arm 22, when the sub conveyor roller 23 rotates to be flush with and coaxial with the main conveyor roller 12, the rotating arm 22 collides with the positioning block 15, and the positioning block 15 can assist in determining the rotation of the sub conveyor roller 23 to be flush with and coaxial with the main conveyor roller 12.

Generally speaking, in the transfer machine, the conveying length of the auxiliary conveying device 2 is equivalent to the conveying length formed by a plurality of main conveying rollers 12, when the conveying path is long, only one roller frame 21 consistent with the conveying length is arranged in the conveying direction, the weight of the roller frame 21 is large, and the difficulty of rotation of the roller frame 21 is greatly increased, so in the embodiment, the number of the roller frames 21 is multiple, each roller frame 21 is correspondingly provided with a support leg 13, and each roller frame 21 is connected with the support leg 13 through a rotating arm 22; as shown in fig. 6, the roller frame 21 is provided with a mounting groove 210 for mounting the sub-conveyor roller 23, the top of the mounting groove 210 is open, and the sub-conveyor roller 23 is mounted in the mounting groove 210 and the top is higher than the upper surface of the roller frame 21. In the technical scheme, the auxiliary conveying device 2 utilizes the auxiliary conveying rollers 23 on the roller frames 21 to match with the main conveying rollers 12 to complete conveying, each roller frame 21 can independently rotate and be fixed, so that the operation can be completely completed by one person when the conveying width of the transfer machine is actually increased, the operation is simple and convenient, the auxiliary conveying rollers 23 are installed in the installation groove 210, the top of the auxiliary conveying rollers is higher than the upper surface of the roller frames 21, the influence of the roller frames 21 on objects in the conveying process is eliminated, and the smooth conveying is ensured.

Preferably, the auxiliary conveying roller 23 is a hollow structure and has an axial central through hole, as shown in fig. 1 and 5, an abutting rod 24 is disposed in the axial central through hole, a limiting block 241 is disposed on the abutting rod 24 and located at two sides of the auxiliary conveying roller 23, the limiting block 241 limits the abutting rod 24 in the auxiliary conveying roller 23, as shown in fig. 7, an abutting groove 121 is disposed at an end of the main conveying roller 12, an abutting joint 242 is disposed at an end of the abutting rod 24 and abuts against the abutting groove 121, the abutting groove 121 and the abutting joint 242 are both cross-shaped, that is, cross-shaped in cross-section, when the auxiliary conveying roller 23 rotates to be flush with and coaxial with the main conveying roller 12 and the roller frame 21 is fixed by the fixing structure 3, the abutting rod 24 is axially moved so that the abutting joint 242 abuts against the abutting groove 121, and the auxiliary conveying roller 23 obtains the same rotation speed as the main conveying roller 12, further ensuring smooth conveyance of the article.

The described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.