CN211967496U - Material frame - Google Patents

Abstract

The utility model relates to the technical field of material storage articles, in particular to a material rack, which comprises a bracket; the first support assemblies are arranged at the lower part of the bracket at intervals along the vertical direction; the second supporting assembly comprises N +1 receiving assemblies and N overturning assemblies, the N +1 receiving assemblies are arranged on the upper portion of the support at intervals in the vertical direction, the N overturning assemblies are rotatably arranged on the support, one overturning assembly is arranged between any two adjacent receiving assemblies, N is a positive integer, and the overturning assemblies can convey materials to the adjacent receiving assemblies from the adjacent receiving assemblies which are positioned above the overturning assemblies to the adjacent receiving assemblies which are positioned below the overturning assemblies; go up work or material rest and actuating mechanism, go up the work or material rest and slide and set up in the support, actuating mechanism can drive and go up the work or material rest and go up the lift along vertical direction, and goes up the work or material rest and can carry the material to the material receiving component who is located the top, can reduce operator's work load to can make the material frame increase along vertical direction, in order to increase the total amount of the storage material of material frame.

Description

Material frame

Technical Field

The utility model relates to an articles for use technical field is deposited to the material, especially relates to a material frame.

Background

The material frame is widely applied to the processing industry, and the material frame is usually provided with a plurality of layers, so that different parts can be stored in layers according to requirements to adapt to different processing requirements.

In view of the convenience of manually carrying goods from the material racks, the layer heights of the existing material racks are relatively short, which also results in a limited number of layers in the height direction of the material racks, and thus a smaller total amount of stored materials. Taking a line-edge material rack commonly used in the automobile manufacturing industry as an example, the line-edge material rack is generally set to be less than 1.6 meters, if the height is higher, the material rack does not conform to the human engineering, an operator needs to pay large labor load to carry out loading and unloading, and if the transverse length of the material rack is increased, the occupied area of the material rack is increased, and the material rack is not suitable for being placed along a line.

Disclosure of Invention

The utility model aims to provide a: the utility model provides a material frame to solve the height of material frame in the correlation technique and be limited, deposit the problem that the total volume of material is less.

The utility model provides a material frame, this material frame includes:

a support;

the first support assemblies are arranged at the lower part of the bracket at intervals along the vertical direction;

the second supporting assembly comprises N +1 receiving assemblies and N overturning assemblies, the N +1 receiving assemblies are arranged on the upper portion of the support at intervals in the vertical direction, the N overturning assemblies are rotatably arranged on the support, one overturning assembly is arranged between any two adjacent receiving assemblies, N is a positive integer, and the overturning assemblies can convey materials from the adjacent receiving assemblies above the overturning assemblies to the adjacent receiving assemblies below the overturning assemblies;

go up work or material rest and actuating mechanism, go up the work or material rest slide set up in the support, actuating mechanism can drive go up the work or material rest and go up the lift along vertical direction, just go up the work or material rest can carry the material to being located the top connect the material subassembly.

As a preferable technical scheme of the material rack, the support comprises a feeding side and a discharging side which are arranged oppositely, each first supporting component extends from the feeding side to the discharging side, and one end of each first supporting component, which is located on the feeding side, is higher than one end of each first supporting component, which is located on the discharging side.

As a preferable technical solution of the material rack, the material rack further includes a third support assembly disposed below the plurality of first support assemblies and fixed to the support, the third support assembly extends from the discharging side to the feeding side, and one end of the third support assembly located at the feeding side is lower than one end of the third support assembly located at the discharging side.

As a preferable technical scheme of the material rack, the overturning assembly comprises a fourth supporting assembly and an elastic piece, and one end of the fourth supporting assembly is pivoted with the bracket;

the fourth supporting assembly is provided with a first position and a second position, when the fourth supporting assembly is located at the first position, the other end of the fourth supporting assembly is abutted to the material receiving assembly above and adjacent to the fourth supporting assembly, when the fourth supporting assembly is located at the second position, the other end of the fourth supporting assembly is abutted to the material receiving assembly below and adjacent to the fourth supporting assembly, and the material on the fourth supporting assembly can be driven under the action of gravity to move the fourth supporting assembly from the first position to the second position, and the elastic piece can drive the fourth supporting assembly to move the fourth supporting assembly from the second position to the first position.

As a preferable technical scheme of the material rack, the turnover assembly further comprises a vertical rod arranged on the fourth support assembly and a cross rod arranged at the upper end of the vertical rod, and a channel is formed between the cross rod and the fourth support assembly;

when the fourth supporting assembly is located at the first position, the material on the material receiving assembly abutted to the fourth supporting assembly can be conveyed to the fourth supporting assembly through the channel, and when the fourth supporting assembly is located at the second position, the cross rod can prevent the material on the material receiving assembly, which is located above and adjacent to the fourth supporting assembly, from being conveyed to the fourth supporting assembly.

As a preferable technical solution of the material rack, the turnover assembly further includes a first stop member disposed above the fourth support assembly, the first stop member is located at one end of the fourth support assembly pivotally connected to the bracket, and when the fourth support assembly is located at the first position, the first stop member can prevent the material from being detached from the fourth support assembly.

As a preferred technical solution of the material rack, the material rack further includes a plurality of second stop members disposed on the plurality of first support assemblies in a one-to-one correspondence manner, the second stop members are adjacent to the discharging side, and the second stop members can abut against the material on the corresponding first support assemblies to prevent the material from being separated from the corresponding first support assemblies.

As the preferred technical scheme of material frame, N =2, be located the top connect the material subassembly to close on the material loading side sets up, be located the bottom connect the material subassembly to close on the material unloading side sets up, all the other connect the material subassembly set up between the centre in the material loading side with between the material unloading side, it establishes to slide to set up in the material loading side of support.

As a preferred technical scheme of the material frame, the material frame further comprises a plurality of rollers arranged below the support.

As a preferred technical scheme of the material rack, the first supporting assembly comprises a plurality of bases arranged side by side and a plurality of rollers rotatably arranged on the bases, the rollers are arranged at intervals along the extending direction of the first supporting assembly, and the rollers are used for supporting materials.

The utility model has the advantages that:

the utility model provides a material rack, which comprises a bracket, wherein a plurality of first supporting components are arranged at intervals along the vertical direction at the lower part of the bracket, the height of the first supporting components is relatively low, the material can be directly conveyed to the first supporting component for storage through manual work, the second supporting component is arranged at the upper part of the bracket and is relatively higher, the feeding frame is driven by the driving mechanism to lift along the vertical direction, when the feeding frame is positioned at the lower part, the materials can be manually carried to the material loading frame, when the material loading frame is positioned above and level with the uppermost material receiving component, the materials can be moved to the material receiving component from the material loading frame, thereby avoiding the need of lifting the materials too high manually to store the materials in each material receiving component, reducing the labor load of operators, compared with the prior art, the material rack can be heightened along the vertical direction so as to increase the total amount of the stored materials of the material rack.

Drawings

Fig. 1 is a schematic structural view of a material rack in an embodiment of the present invention;

fig. 2 is a side view of the material shelf according to an embodiment of the present invention (each turning assembly is located at the first position);

fig. 3 is a side view of the material shelf according to an embodiment of the present invention (each turning assembly is located at the second position);

fig. 4 is a schematic structural diagram of the base and the roller in the embodiment of the present invention.

In the figure:

1. a support; 11. a feeding side; 12. discharging side;

2. a first support assembly; 21. a base; 22. a roller; 23. a second stop member;

3. a second support assembly; 31. a material receiving assembly; 32. a turnover assembly; 321. a fourth support assembly; 322. an elastic member; 323. erecting a rod; 324. a cross bar; 325. a first stop member; 33. a third stop member;

4. a feeding frame;

5. a drive mechanism;

6. a third support assembly;

7. a roller;

10. and (3) feeding.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the present embodiment provides a material rack, which includes a support 1, a plurality of first supporting assemblies 2, a plurality of second supporting assemblies 3, a material loading rack 4, and a driving mechanism 5. Wherein, a plurality of first supporting components 2 are arranged at intervals at the lower part of the bracket 1 along the vertical direction; the second supporting assembly 3 comprises N +1 material receiving assemblies 31 arranged on the upper part of the support 1 at intervals along the vertical direction, and N turning assemblies 32 rotatably arranged on the support 1, wherein one turning assembly 32 is arranged between any two adjacent material receiving assemblies 31, N is a positive integer, and the turning assemblies 32 can convey materials 10 from the adjacent material receiving assemblies 31 positioned above the turning assemblies to the adjacent material receiving assemblies 31 positioned below the turning assemblies; go up work or material rest 4 and actuating mechanism 5, go up work or material rest 4 and slide and set up in support 1, actuating mechanism 5 can drive and go up work or material rest 4 and go up the lift along vertical direction, and go up work or material rest 4 and can carry material 10 to the material receiving component 31 that is located the top. A plurality of first supporting components 2 of the material rack are arranged at the lower part of a support 1, the position of the first supporting components 2 is relatively low, materials 10 can be directly conveyed to the first supporting components 2 to be stored through manual work, the position of a second supporting component 3 is relatively high, a feeding frame 4 is driven to lift along the vertical direction through a driving mechanism 5, when the feeding frame 4 is located below, the materials 10 can be conveyed to the feeding frame 4 through manual work, when the feeding frame 4 is located above and flush with a receiving component 31 at the top, the materials 10 can be moved to the receiving component 31 through the feeding frame 4, the situation that the materials 10 need to be lifted too high manually to be stored in each receiving component 31 can be avoided, the labor load of an operator is reduced, compared with the prior art, the material rack can be heightened along the vertical direction, and the total amount of the materials 10 stored in the material rack is increased.

Specifically, the height of the bracket 1 is as high as 2700mm, wherein the plurality of first supporting components 2 are arranged at positions below 1600mm, and the plurality of second supporting components 3 are arranged at positions above 1600 mm.

In this embodiment, the support 1 is a truss structure and can be formed by splicing lean pipes or aluminum alloy sections. The support 1 comprises a feeding side 11 and a discharging side 12 which are oppositely arranged, an operator can carry materials 10 to each first support component 2 through the feeding side 11, and the discharging side 12 can be in butt joint with the production line so as to provide the materials 10 for the production line. Each first supporting component 2 is extended from the loading side 11 to the unloading side 12, and one end of the first supporting component 2 located at the loading side 11 is higher than one end of the first supporting component 2 located at the unloading side 12, so that the material 10 conveyed to the first supporting component 2 can automatically slide from the loading side 11 to the unloading side 12 under the action of the gravity of the material 10. Preferably, one end of each first support assembly 2 adjacent to the blanking side 12 is provided with a second stop member 23, and the second stop member 23 can abut against the material 10 on the corresponding first support assembly 2 to prevent the material 10 from separating from the corresponding first support assembly 2. Through setting up second stop 23, can carry on spacingly to material 10 on the first supporting component 2. Further preferably, the first supporting component 2 comprises a plurality of bases 21 arranged side by side, and a plurality of rollers 22 rotatably arranged on the bases 21, the bases 21 are fixed on the support 1, the plurality of rollers 22 are arranged at intervals along the extending direction of the first supporting component 2, and the rollers 22 are used for supporting the material 10. It can be understood that the base 21 extends along the direction from the loading side 11 to the unloading side 12, the rotation center line of the roller 22 is perpendicular to the extending direction of the base 21, and by arranging the roller 22, the roller 22 and the material 10 have rolling friction, so that the friction force between the two can be reduced, and the material 10 can slide from the loading side 11 to the unloading side 12 under the action of gravity.

Optionally, the material rack further includes a third support assembly 6 disposed below the plurality of first support assemblies 2 and fixed to the support 1, the third support assembly 6 extends from the discharging side 12 to the feeding side 11, and one end of the third support assembly 6 located at the feeding side 11 is lower than one end of the third support assembly 6 located at the discharging side 12. The third support assembly 6 may be used to store material 10 in-line or in-line with potential quality problems on the first and second support assemblies 2, 3. In this embodiment, the third support assembly 6 is also composed of a plurality of bases 21 arranged side by side, and a plurality of rollers 22 rotatably arranged on the bases 21.

In this embodiment, each material receiving assembly 31 is inclined with respect to the horizontal plane, and in two adjacent material receiving assemblies 31, the lowest point of the material receiving assembly 31 located above is higher than the highest point of the material receiving assembly 31 located below, and the turning assembly 32 can be connected with the lowest point of the material receiving assembly 31 located above and adjacent to the turning assembly or connected with the highest point of the material receiving assembly 31 located below and adjacent to the turning assembly, so that the material 10 can be moved to the material receiving assembly 31 located below layer by layer sequentially by the material receiving assembly 31 located above under the action of gravity. The receiving assembly 31 is also composed of a plurality of bases 21 arranged side by side and a plurality of rollers 22 rotatably arranged on the bases 21.

In this embodiment, the turning assembly 32 includes a fourth supporting assembly 321 and an elastic member 322, wherein one end of the fourth supporting assembly 321 is pivotally connected to the bracket 1; the fourth supporting assembly 321 has a first position and a second position, when the fourth supporting assembly 321 is located at the first position, the other end of the fourth supporting assembly 321 abuts against the adjacent receiving assembly 31 located above the fourth supporting assembly 321, when the fourth supporting assembly 321 is located at the second position, the other end of the fourth supporting assembly 321 abuts against the adjacent receiving assembly 31 located below the fourth supporting assembly 321, the material 10 located on the fourth supporting assembly 321 can drive the fourth supporting assembly 321 to move from the first position to the second position under the action of gravity, and the elastic member 322 can drive the fourth supporting assembly 321 to move from the second position to the first position. So set up, when material 10 moved to fourth supporting component 321 on, can oppress fourth supporting component 321 and overcome the elastic force of elastic component 322 and rotate to the second position by the first position through gravity, realize that material 10 shifts between adjacent two-layer material receiving component 31. The fourth support assembly 321 is also composed of a plurality of bases 21 arranged side by side, and a plurality of rollers 22 rotatably arranged on the bases 21. The elastic member 322 may be a tension spring or a bungee cord.

Optionally, the turning assembly 32 further includes a vertical rod 323 disposed on the fourth supporting assembly 321 and a cross rod 324 disposed at an upper end of the vertical rod 323, wherein a channel is formed between the cross rod 324 and the fourth supporting assembly 321; when the fourth supporting assembly 321 is located at the first position, the material 10 on the material receiving assembly 31 abutted to the fourth supporting assembly 321 can be conveyed to the fourth supporting assembly 321 through the channel, and when the fourth supporting assembly 321 is located at the second position, the cross bar 324 can prevent the material 10 on the adjacent material receiving assembly 31 above the fourth supporting assembly 321 from being conveyed to the fourth supporting assembly 321. With this arrangement, when there is a material 10 on the fourth supporting assembly 321, the fourth supporting assembly 321 rotates to the second position, and the material 10 on the adjacent receiving assembly 31 above the fourth supporting assembly 321 is prevented from sliding down to the fourth supporting assembly 321.

Optionally, the turning assembly 32 further includes a first stopping member 325 disposed above the fourth supporting assembly 321, the first stopping member 325 is disposed at an end of the fourth supporting assembly 321 pivoted to the bracket 1, and when the fourth supporting assembly 321 is located at the first position, the first stopping member 325 can prevent the material 10 from being separated from the fourth supporting assembly 321.

In this embodiment, N =2, the second supporting component 3 includes three material receiving components 31 and two upset subassemblies 32, and the material receiving component 31 that is located the top is close to the setting of material loading side 11, and the material receiving component 31 that is located the bottom is close to the setting of material unloading side 12, and all the other material receiving components 31 are set up in the centre between material loading side 11 and material unloading side 12, and material loading frame 4 establishes to slide and sets up in material loading side 11 of support 1. So set up, be convenient for the operator to the second supporting component 3 material loading, simultaneously, the accessible is located the material receiving assembly 31 of the below and carries material 10 to the assembly line. Preferably, one end of the receiving assembly 31 located at the lowest position, which is adjacent to the discharging side 12, is provided with a third stop member 33, so that the third stop member 33 is arranged to prevent the material 10 located on the receiving assembly 31 located at the lowest position from being separated from the receiving assembly 31, and at the same time, it can be ensured that each receiving assembly 31 is filled with the material 10. As shown in fig. 3, when one material 10 is used up on the receiving assembly 31 located at the lowest position, the remaining material 10 on the second supporting assembly 3 will move downward by itself.

In this embodiment, the feeding frame 4 is also composed of a plurality of bases 21 arranged side by side and a plurality of rollers 22 rotatably arranged on the bases 21. And as shown in fig. 2 and fig. 3, the first end of the feeding frame 4 is in sliding fit with the feeding side 11 of the support 1, and the second end is located outside the feeding frame 4 and higher than the first end, so that when the first end of the feeding frame 4 is aligned with the receiving component 31 located at the top, the material 10 on the feeding frame 4 will automatically slide to the receiving component 31 at the top.

In this embodiment, actuating mechanism 5 includes haulage rope and driving piece, haulage rope one end and last work or material rest 4 rigid coupling, and the other end accessible driving piece rolling or release to the drive goes up work or material rest 4 and goes up and down. The driving piece can be a motor, the motor is fixed on the support 1, the output end of the motor is provided with a roller, the roller is fixedly connected with the other end of the traction rope, the top of the support 1 is provided with a fixed pulley, and the traction rope bypasses the fixed pulley and is fixedly connected with the feeding frame 4. In other embodiments, the driving mechanism 5 may further include a motor, a driving roller in transmission connection with an output shaft of the motor, a driven roller arranged at an interval with the driving roller along the vertical direction, and a synchronous belt connected to the driving roller and the driven roller, the driving roller is located below the driven roller, the driving roller and the driven roller are both rotationally connected to the support 1, the synchronous belt is fixedly connected to the feeding frame 4, and the feeding frame 4 is driven to ascend and descend along the vertical direction by the arrangement. It should be understood that the structure of the driving mechanism 5 is not limited in this embodiment, and in other embodiments, the corresponding driving mechanism 5 may be selected as needed.

The material shelf also comprises a plurality of rollers 7 arranged below the bracket 1. The material rack is convenient to move by arranging the roller 7.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A material rack, comprising:

a support (1);

the first support assemblies (2) are arranged at intervals at the lower part of the bracket (1) along the vertical direction;

the second supporting assembly (3) comprises N +1 material receiving assemblies (31) arranged on the upper portion of the support (1) at intervals in the vertical direction and N overturning assemblies (32) rotatably arranged on the support (1), one overturning assembly (32) is arranged between any two adjacent material receiving assemblies (31), N is a positive integer, and the overturning assemblies (32) can convey materials (10) to the material receiving assemblies (31) which are arranged below and adjacent to the material receiving assemblies from the material receiving assemblies (31) which are arranged above and adjacent to the material receiving assemblies;

go up work or material rest (4) and actuating mechanism (5), go up work or material rest (4) slide set up in support (1), actuating mechanism (5) can drive go up work or material rest (4) and go up and down along vertical direction, just go up work or material rest (4) and can carry material (10) to being located the top connect material subassembly (31).

2. The material rack according to claim 1, characterized in that the support (1) comprises a feeding side (11) and a discharging side (12) which are arranged oppositely, each first support assembly (2) extends from the feeding side (11) to the discharging side (12), and one end of the first support assembly (2) on the feeding side (11) is higher than one end of the first support assembly (2) on the discharging side (12).

3. The material rack according to claim 2, characterized in that the material rack further comprises a third support assembly (6) which is arranged below the plurality of first support assemblies (2) and fixed to the support (1), the third support assembly (6) extends from the feeding side (12) to the feeding side (11), and one end of the third support assembly (6) located at the feeding side (11) is lower than one end of the third support assembly (6) located at the feeding side (12).

4. The material rack according to claim 2, characterized in that the turnover assembly (32) comprises a fourth supporting assembly (321) and an elastic member (322), wherein one end of the fourth supporting assembly (321) is pivoted with the bracket (1);

the fourth support member (321) having a first position and a second position, when the fourth support member (321) is in the first position, the other end of the fourth supporting component (321) is abutted with the adjacent material receiving component (31) which is positioned above the fourth supporting component (321), when the fourth supporting assembly (321) is located at the second position, the other end of the fourth supporting assembly (321) is abutted to the adjacent receiving assembly (31) located below the fourth supporting assembly (321), and the material (10) located on the fourth supporting assembly (321) can drive the fourth supporting assembly (321) to move from the first position to the second position under the action of gravity, the elastic piece (322) can drive the fourth supporting component (321) to move from the second position to the first position.

5. Material rack according to claim 4, characterized in that the turning assembly (32) further comprises a vertical bar (323) arranged on the fourth support assembly (321) and a cross bar (324) arranged at the upper end of the vertical bar (323), wherein a channel is formed between the cross bar (324) and the fourth support assembly (321);

when the fourth supporting assembly (321) is located at the first position, the material (10) on the material receiving assembly (31) abutted to the fourth supporting assembly (321) can be conveyed to the fourth supporting assembly (321) through the channel, and when the fourth supporting assembly (321) is located at the second position, the cross bar (324) can prevent the material (10) on the material receiving assembly (31) above and adjacent to the fourth supporting assembly (321) from being conveyed to the fourth supporting assembly (321).

6. The material rack according to claim 4, characterized in that the turnover assembly (32) further comprises a first stop member (325) arranged above the fourth support assembly (321), the first stop member (325) is arranged at one end of the fourth support assembly (321) pivoted with the bracket (1), and when the fourth support assembly (321) is arranged at the first position, the first stop member (325) can prevent the material (10) from being separated from the fourth support assembly (321).

7. The material rack according to claim 2, characterized in that the material rack further comprises a plurality of second stop members (23) arranged on the plurality of first support assemblies (2) in a one-to-one correspondence, the second stop members (23) being adjacent to the discharge side (12), the second stop members (23) being capable of abutting against the material (10) on the corresponding first support assembly (2) to prevent the material (10) from disengaging from the corresponding first support assembly (2).

8. The material rack according to claim 2, wherein N =2, the uppermost receiving assembly (31) is arranged adjacent to the feeding side (11), the lowermost receiving assembly (31) is arranged adjacent to the discharging side (12), the rest receiving assemblies (31) are arranged between the feeding side (11) and the discharging side (12) in the middle, and the feeding rack (4) is arranged on the feeding side (11) of the support (1) in a sliding manner.

9. An article holder according to claim 1 further comprising a plurality of rollers (7) disposed below the support (1).

10. The material rack according to claim 1, characterized in that the first support assembly (2) comprises a plurality of bases (21) arranged side by side and a plurality of rollers (22) rotatably arranged on the bases (21), the bases (21) are fixed on the support (1), the rollers (22) are arranged at intervals along the extension direction of the first support assembly (2), and the rollers (22) are used for supporting the material (10).

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