A material shaft feeding device

Abstract

The utility model relates to reel material passes through the technical field of axle, especially relates to a material axle feeding device. A material axle feeding device includes frame body, material axle lifting mechanism and material axle placing mechanism, and material axle placing mechanism is located at the lower part of the first side of frame body, and material axle lifting mechanism includes driving part, two chain transmission parts and a plurality of moving plates. Driving part drives two chain transmission parts synchronous movement, makes moving plate go up to material axle placing mechanism position on the uplink vertical section to support material axle placing mechanism on material axle, and drives material axle to go up vertically along the uplink vertical section, and material axle is turned over to the process of downlink vertical section through top horizontal transition section, and material axle shifts to the feeding place of the top of frame body second side. The material axle feeding device realizes the automatic operation of material axle feeding through the cooperation of frame body, material axle lifting mechanism and material axle placing mechanism.

Description

Technical Field

[0001] This utility model relates to the field of material feeding device for rolls and shafts. Background Technology

[0002] In the production process of a printing and packaging plant, roll materials (such as roll plastic film and roll paper) need to undergo multiple processes, including printing, lamination, curing, and slitting. Before entering the intelligent curing chamber after the lamination process, the roll material must be threaded through a material spool for curing. After curing, the material spool must be removed from the curing chamber to proceed to the next production step. Furthermore, other processes in the production process also frequently require threading or removing material spools.

[0003] Currently, the industry requires the storage of coiled material through a storage silo for threading and unthreading operations. When loading the storage silo, manual loading is mostly used, which not only results in high labor intensity for workers but also low work efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a material shaft feeding device, which solves the technical problems of high labor intensity, low operation efficiency and high production cost caused by manual feeding of storage bins.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] This utility model embodiment provides a material shaft feeding device, including a frame, a material shaft lifting mechanism, and a material shaft placement mechanism. The material shaft placement mechanism is located at the lower part of the first side of the frame. The material shaft lifting mechanism is disposed on the frame and includes a driving component, two chain drive components, and multiple moving plates. The two chain drive components are spaced apart on the frame, and the transmission path of the chain drive components includes an upward vertical section located on the first side of the frame, a downward vertical section located on the second side of the frame, and a top horizontal transition section connecting the upward vertical section and the downward vertical section. Multiple moving plates are spaced apart on the chain drive components, and the moving plates on the two chain drive components are horizontally corresponding one-to-one. The driving component drives the two chain drive components to move synchronously, so that a pair of horizontally corresponding moving plates on the two chain drive components move upward on the upward vertical section to the position of the material shaft placement mechanism to support the material shaft on the material shaft placement mechanism, and drive the material shaft to rise vertically along the upward vertical section. During the process of the material shaft flipping through the top horizontal transition section to the downward vertical section, the material shaft is transferred to the feeding position at the top of the second side of the frame.

[0009] Preferably, the chain drive component includes a drive chain, a driving sprocket, and a driven sprocket. The drive chain meshes between the driving sprocket and the driven sprocket, and the moving plate is disposed on the drive chain. The fixed end of the drive component is disposed on the frame, and the driving end of the drive component is connected to the long shaft. The driving sprockets of the two chain drive components are fixedly sleeved on the long shaft. The driven sprocket is rotatably disposed on the frame.

[0010] Preferably, one end of the movable plate is fixedly connected to a link of the transmission chain; the movable plate has an L-shaped structure, and the supporting part of the movable plate is used to support the material shaft. When the transmission chain drives the movable plate to be in the upward vertical section, the supporting part of the movable plate is perpendicular to the moving direction of the transmission chain.

[0011] Preferably, the material shaft lifting mechanism further includes a tensioning unit; the passive sprocket is mounted on the tensioning unit via a rotating shaft, and the tensioning unit is adjustablely mounted on the frame.

[0012] Preferably, the material shaft placement mechanism includes a movable frame and two support rods; the two support rods are arranged parallel to each other on the movable frame, and the support rods are inclined towards the frame body, and the two support rods are used to support the material shafts; the distance between the two chain drive components is smaller than the distance between the two support rods.

[0013] Preferably, the bottom of the mobile frame is provided with four moving wheels and multiple first rolling wheels. The four moving wheels are located at the four corners of the bottom of the mobile frame for walking on the ground. The frame body includes a first mounting frame and a second mounting frame connected together. The first mounting frame extends longitudinally and the second mounting frame extends horizontally. The material shaft lifting mechanism is provided on the first mounting frame, and the second mounting frame is provided with a guide rail for the first rolling wheels to slide on.

[0014] Preferably, it further includes a locking mechanism, which includes a telescopic drive and a locking plate; the telescopic drive is disposed on the second mounting bracket, the telescopic end of the telescopic drive is connected to the locking plate, and the locking plate can be moved horizontally to engage with the movable frame to limit the displacement of the movable frame.

[0015] Preferably, the second mounting frame is provided with two guide plates and two abutment plates; the two abutment plates are arranged in parallel and spaced apart to limit the movement direction of the moving frame; the two guide plates are arranged on both sides of the movement path of the moving frame to guide the movement direction.

[0016] Preferably, the movable frame is further provided with a second rolling wheel; the second rolling wheel is located on the side of the movable frame close to the second mounting frame; the locking plate cooperates with the second rolling wheel, and the locking plate drives the second rolling wheel to move along the extension direction of the movable frame; the rolling surface of the second rolling wheel contacts the locking plate.

[0017] Preferably, the feed spool is used for roll plastic film or roll paper.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are:

[0020] This utility model discloses a material shaft feeding device, comprising a frame, a material shaft lifting mechanism, and a material shaft placement mechanism. The material shaft placement mechanism is located at the lower part of the first side of the frame, and the material shaft lifting mechanism is mounted on the frame. The material shaft lifting mechanism includes a drive component, two chain drive components, and multiple movable plates. The two chain drive components are spaced apart on the frame. The transmission path of the chain drive components includes an upward vertical section located on the first side of the frame, a downward vertical section located on the second side of the frame, and a top horizontal transition section connecting the upward and downward vertical sections. The multiple movable plates are spaced apart on the chain drive components, with the movable plates on the two chain drive components corresponding horizontally. The transmission path of the chain drive components enables the material shaft to achieve continuous vertical upward, flipping transfer, and vertical downward movement, ensuring the smoothness and stability of material shaft transmission and preventing the material shaft from falling or jamming during transmission.

[0021] The drive unit drives two chain transmission components to move synchronously, causing a pair of laterally corresponding moving plates on the two chain transmission components to move upwards in the vertical section to the material shaft placement mechanism to support the material shaft on the placement mechanism. This drives the material shaft to rise vertically along the vertical section. As the material shaft flips through the top horizontal transition section to the downward vertical section, it is transferred to the loading point at the top of the second side of the frame. The material shaft loading device, through the cooperation of the frame, the material shaft lifting mechanism, and the material shaft placement mechanism, achieves automated material shaft loading. The synchronous movement of the two chain transmission components of the material shaft lifting mechanism drives the moving plates along a specific path, automatically supporting the material shaft on the placement mechanism and transporting it from the lower part of the first side of the frame to the loading point at the top of the second side. This eliminates the need for manual loading, significantly reducing the labor intensity of workers. Compared to manual loading, the automated transmission process is continuous and stable, reducing the tedious steps and time consumption of manual operation, significantly improving loading efficiency, and meeting the high-efficiency material shaft loading needs of printing and packaging plants and other similar scenarios. Attached Figure Description

[0022] Figure 1 This is a first-view structural schematic diagram of the material shaft feeding device of this utility model.

[0023] Figure 2 for Figure 1 The left view;

[0024] Figure 3 A schematic diagram of the frame and the material shaft lifting mechanism;

[0025] Figure 4 A schematic diagram of the structure of the AGV (Automated Guided Vehicle) material shaft placement mechanism.

[0026] Figure 5This is a schematic diagram of the material shaft lifting mechanism placed on the second mounting frame;

[0027] Figure 6 This is a structural schematic diagram of the material feeding device from a second perspective.

[0028] Figure 7 for Figure 6 An enlarged schematic diagram of part A in the middle;

[0029] Figure 8 A schematic diagram of the structure in which the locking mechanism cooperates with the second rolling wheel;

[0030] Figure 9 for Figure 6 Enlarged schematic diagram of part B in the middle;

[0031] Figure 10 A schematic diagram of the structure for transferring the material shaft to the loading point by flipping the moving plate.

[0032] [Explanation of Labels in the Attached Image]

[0033] 1: Frame; 11: First mounting bracket; 12: Second mounting bracket; 13: Guide plate; 14: Abutment plate;

[0034] 2: Material shaft lifting mechanism; 21: Drive component; 22: Chain drive component; 221: Drive chain; 222: Drive sprocket; 223: Driven sprocket; 23: Moving plate; 24: Long shaft; 25: Tensioning unit;

[0035] 3: Material shaft placement mechanism; 31: Moving frame; 32: Support rod; 33: Moving wheel; 34: First rolling wheel; 35: Second rolling wheel;

[0036] 4: Locking mechanism; 41: Telescopic drive component; 42: Locking plate;

[0037] 5: AGV (Automated Guided Vehicle);

[0038] 6: Loading area. Detailed Implementation

[0039] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figure 1 As shown, this utility model embodiment provides a material shaft feeding device, which includes a frame 1, a material shaft lifting mechanism 2 and a material shaft placement mechanism 3. The material shaft placement mechanism 3 is located at the lower part of the first side of the frame 1, and the material shaft lifting mechanism 2 is disposed on the frame 1.

[0041] The material shaft lifting mechanism 2 includes a drive component 21, two chain drive components 22, and multiple moving plates 23. The two chain drive components 22 are spaced apart on the frame 1, and the transmission path of the chain drive components 22 includes an upward vertical section located on the first side of the frame 1, a downward vertical section located on the second side of the frame 1, and a top horizontal transition section connecting the upward and downward vertical sections. For example... Figure 3 As shown, the right side is the first side of frame 1, and the left side is the second side of frame 1.

[0042] Multiple movable plates 23 are spaced apart on the chain drive component 22. The movable plates 23 on two chain drive components 22 correspond horizontally. The transmission path of the chain drive component 22 consists of an upward vertical section, a top horizontal transition section, and a downward vertical section. This allows the material shaft to achieve continuous vertical upward, flipping, and vertical downward movements, ensuring smooth and stable material shaft transmission and preventing the material shaft from falling or jamming during transmission. Figure 10 As shown, the drive unit 21 drives two chain drive units 22 to move synchronously, so that a pair of horizontally corresponding moving plates 23 on the two chain drive units 22 move up to the material shaft placement mechanism 3 in the upward vertical section to support the material shaft on the material shaft placement mechanism 3, and drive the material shaft to rise vertically along the upward vertical section. During the process of the material shaft flipping from the top horizontal transition section to the downward vertical section, the material shaft is transferred to the loading point 6 on the top of the second side of the frame 1.

[0043] The material shaft is used for roll plastic film or roll paper. The material shaft is a rotating structure. The material shaft includes a middle section and overlapping sections on both sides of the middle section. The moving plate 23 supports the middle section of the material shaft. However, when it is transferred to the loading point 6 on the top of the second side of the frame 1, the loading point 6 on the top of the second side supports the overlapping sections on both sides of the material shaft. Of course, in actual application, the loading point 6 on the top of the second side does not interfere with the downward movement of the moving plate 23.

[0044] The material shaft feeding device, through the cooperation of the frame 1, the material shaft lifting mechanism 2, and the material shaft placement mechanism 3, achieves automated material shaft feeding. The two chain drive components 22 of the material shaft lifting mechanism 2 move synchronously, driving the moving plate 23 along a specific path. This automatically supports the material shafts on the material shaft placement mechanism 3 and transports them from the lower part of the first side of the frame 1 to the feeding point 6 at the top of the second side, eliminating the need for manual feeding and significantly reducing the labor intensity of workers. Compared to manual feeding, the automated transmission process is continuous and stable, reducing the tedious steps and time consumption of manual operation, significantly improving the efficiency of feeding operations, and meeting the high-efficiency material shaft feeding needs of printing and packaging plants and other similar scenarios.

[0045] like Figure 2As shown, the chain drive component 22 includes a drive chain 221, a driving sprocket 222, and a driven sprocket 223. The drive chain 221 meshes between the driving sprocket 222 and the driven sprocket 223, and a moving plate 23 is mounted on the drive chain 221. The fixed end of the drive component 21 is mounted on the frame 1, and the driving end of the drive component 21 is connected to the long shaft 24. The driving sprockets 222 of both chain drive components 22 are fixedly sleeved on the long shaft 24, and the driven sprockets 223 are rotatably mounted on the frame 1. After the drive component 21 is started, it drives the two driving sprockets 222 to rotate synchronously through the long shaft 24, thereby driving the drive chain 221 to move, realizing the synchronous operation of the two chain drive components 22. As shown in the figure... Figure 3 As shown, the transmission chain 221 rotates counterclockwise. The right side is the upward vertical section located on the first side of the frame 1, the left side is the downward vertical section located on the second side of the frame 1, and the top is the top horizontal transition section connecting the upward vertical section and the downward vertical section.

[0046] like Figure 1 As shown, one end of the movable plate 23 is fixedly connected to a link of the transmission chain 221. The connection method can be welding or bolting to ensure connection strength. The movable plate 23 has an L-shaped structure. The supporting part of the movable plate 23 is used to support the middle section of the material shaft. When the transmission chain 221 drives the movable plate 23 to the upward vertical section, the supporting part of the movable plate 23 is perpendicular to the moving direction of the transmission chain 221 and tilted inward at a certain angle. This allows the material shaft to be stably placed on the supporting part of the movable plate 23, preventing the material shaft from sliding during the upward process and improving the stability of the support.

[0047] like Figure 2 As shown, the material shaft lifting mechanism 2 also includes a tensioning unit 25. The driven sprocket 223 is mounted on the tensioning unit 25 via a rotating shaft. The tensioning unit 25 is adjustablely mounted on the frame 1. The tensioning unit 25 can adopt a bolt adjustment structure. By adjusting the installation position of the tensioning unit 25 on the frame 1, the position of the driven sprocket 223 is changed, thereby adjusting the tension of the transmission chain 221. When the transmission chain 221 becomes slack, adjusting the tensioning unit 25 to move the driven sprocket 223 away from the driving sprocket 222 will tighten the transmission chain 221 and ensure the reliability of the transmission.

[0048] like Figure 4 As shown, the material shaft placement mechanism 3 includes a movable frame 31 and two support rods 32. The two support rods 32 are arranged parallel to each other on the movable frame 31. The support rods 32 are inclined towards the frame 1, and the inclination angle can be set according to actual needs, generally 3°-5°. The two support rods 32 are used to support the overlapping sections on both sides of the material shaft. The distance between the two chain drive components 22 is smaller than the distance between the two support rods 32, so that the movable plate 23 can pass smoothly between the two support rods 32 during the movement, thereby supporting the middle section of the material shaft located on the support rods 32.

[0049] like Figure 4 As shown, the bottom of the mobile frame 31 is equipped with four moving wheels 33 and multiple first rolling wheels 34. The four moving wheels 33 are located at the four corners of the bottom of the mobile frame 31 for movement on the ground, facilitating the movement of the mobile frame 31 between different areas. Figure 5 As shown, the frame 1 includes a first mounting frame 11 and a second mounting frame 12 connected together. The first mounting frame 11 extends longitudinally and the second mounting frame 12 extends horizontally. The material shaft lifting mechanism 2 is disposed on the first mounting frame 11. The second mounting frame 12 is provided with a guide rail for the first rolling wheel 34 to slide. When the movable frame 31 needs to work in conjunction with the frame 1, the first rolling wheel 34 of the movable frame 31 slides along the guide rail to the designated position.

[0050] like Figure 1 and Figure 6 As shown, the feeding device for the material shaft also includes a locking mechanism 4, such as... Figure 7 As shown, the locking mechanism 4 includes a telescopic drive member 41 and a locking plate 42. The telescopic drive member 41 is mounted on the second mounting bracket 12, and its telescopic end is connected to the locking plate 42. The locking plate 42 can move horizontally to engage with the movable frame 31, thereby limiting the displacement of the movable frame 31. The telescopic drive member 41 can be a cylinder or a hydraulic cylinder. When the movable frame 31 is placed on the second mounting bracket 12, part of the movable frame 31 abuts against the locking plate 42. The telescopic drive member 41 retracts, driving the movable frame 31 to move through the locking plate 42, causing the movable frame 31 to abut against the second mounting bracket 12 and fix the movable frame 31. When it is necessary to move the movable frame 31, the telescopic drive member 41 extends, releasing the lock on the movable frame 31. Figure 8 The diagram shows a structural schematic of the movable frame 31 being locked to the locking plate 42 via the second rolling wheel 35.

[0051] like Figure 6 and Figure 9 As shown, the second mounting frame 12 is provided with two guide plates 13 and two abutment plates 14. The two abutment plates 14 are arranged in parallel and spaced apart to limit the movement direction of the movable frame 31. The two guide plates 13 are arranged on both sides of the movement path of the movable frame 31 to guide the movement direction. The end of the guide plate 13 away from the abutment plate 14 is inclined outward to form a funnel shape, which plays a guiding role when the movable frame 31 approaches the second mounting frame 12, so that the movable frame 31 can accurately enter between the two guide plates 13.

[0052] like Figure 7 and Figure 8As shown, a second rolling wheel 35 is provided on the movable frame 31. The second rolling wheel 35 is located on the side of the movable frame 31 near the second mounting bracket 12. The locking plate 42 cooperates with the second rolling wheel 35. The locking plate 42 drives the second rolling wheel 35 to move along the extension direction of the movable frame 31, and the rolling surface of the second rolling wheel 35 contacts the locking plate 42. When the locking mechanism 4 drives the movable frame 31 closer to the frame 1, due to the action of the guide plate 13, the movable frame 31 will move slightly left and right during the process of approaching the frame 1. The second rolling wheel 35 converts the sliding friction between the locking plate 42 and the movable frame 31 into rolling friction, reducing frictional resistance, making the locking and unlocking process smoother, and also reducing the wear of components.

[0053] like Figure 1 and Figure 4 As shown, the material shaft loading device also includes an AGV (Automated Guided Vehicle) 5, which is positioned below the material shaft placement mechanism 3. The AGV 5 carries the material shaft placement mechanism 3 and moves it, placing it on the second mounting frame 12. The AGV 5 can be a hydraulically lifted AGV. When the material shaft placement mechanism 3 needs to be moved, the AGV 5 is driven to a position below it, its carrying platform is raised to support the mechanism, then moved to the designated location, and finally the carrying platform is lowered to place the mechanism on the second mounting frame 12. It should be noted that the AGV is existing technology, and its specific structure will not be described in detail here.

[0054] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0056] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A material shaft feeding device, characterized in that, It includes a frame (1), a material shaft lifting mechanism (2), and a material shaft placement mechanism (3); The material shaft placement mechanism (3) is located at the lower part of the first side of the frame (1); The material shaft lifting mechanism (2) is mounted on the frame (1). The material shaft lifting mechanism (2) includes a drive component (21), two chain drive components (22) and multiple moving plates (23). The two chain drive components (22) are spaced apart on the frame (1). The transmission path of the chain drive component (22) includes an upward vertical section located on the first side of the frame (1), a downward vertical section located on the second side of the frame (1), and a top horizontal transition section connecting the upward vertical section and the downward vertical section. Multiple movable plates (23) are spaced apart on the chain drive component (22), and the movable plates (23) on two chain drive components (22) are laterally corresponding one-to-one; The driving component (21) drives the two chain drive components (22) to move synchronously, so that a pair of horizontally corresponding moving plates (23) on the two chain drive components (22) move up to the position of the material shaft placement mechanism (3) on the upward vertical section to support the material shaft on the material shaft placement mechanism (3), and drive the material shaft to rise vertically along the upward vertical section. During the process of the material shaft flipping through the top horizontal transition section to the downward vertical section, the material shaft is transferred to the loading point at the top of the second side of the frame (1).

2. The material shaft feeding device as described in claim 1, characterized in that: The chain drive component (22) includes a drive chain (221), a drive sprocket (222), and a driven sprocket (223). The drive chain (221) meshes between the drive sprocket (222) and the driven sprocket (223). The movable plate (23) is disposed on the drive chain (221). The fixed end of the drive component (21) is set on the frame (1), the drive end of the drive component (21) is connected to the long shaft (24), and the drive sprockets (222) of the two chain drive components (22) are fixedly sleeved on the long shaft (24). The passive sprocket (223) is rotatably mounted on the frame (1).

3. The material shaft feeding device as described in claim 2, characterized in that: One end of the movable plate (23) is fixedly connected to a link of the transmission chain (221); The moving plate (23) has an L-shaped structure. The supporting part of the moving plate (23) is used to support the material shaft. When the transmission chain (221) drives the moving plate (23) to be located in the upward vertical section, the supporting part of the moving plate (23) is perpendicular to the moving direction of the transmission chain (221).

4. The material shaft feeding device as described in claim 2, characterized in that: The material shaft lifting mechanism (2) also includes a tensioning unit (25); The passive sprocket (223) is mounted on the tensioning unit (25) via a rotating shaft, and the tensioning unit (25) is adjustablely mounted on the frame (1).

5. The material shaft feeding device as described in claim 1, characterized in that: The material shaft placement mechanism (3) includes a movable frame (31) and two support rods (32); Two support rods (32) are arranged parallel to each other on the movable frame (31), and the support rods (32) are inclined towards the frame (1). The two support rods (32) are used to support the material shaft. The distance between the two chain drive components (22) is less than the distance between the two support rods (32).

6. The material shaft feeding device as described in claim 5, characterized in that: The bottom of the mobile frame (31) is provided with four moving wheels (33) and a plurality of first rolling wheels (34). The four moving wheels (33) are located at the four corners of the bottom of the mobile frame (31) for walking on the ground. The frame (1) includes a first mounting bracket (11) and a second mounting bracket (12) connected together, the first mounting bracket (11) extending longitudinally and the second mounting bracket (12) extending horizontally; The material shaft lifting mechanism (2) is mounted on the first mounting frame (11), and the second mounting frame (12) is provided with a guide rail for the first rolling wheel (34) to slide.

7. The material shaft feeding device as described in claim 6, characterized in that: It also includes a locking mechanism (4), which includes a telescopic drive (41) and a locking plate (42); The telescopic drive (41) is disposed on the second mounting bracket (12). The telescopic end of the telescopic drive (41) is connected to the locking plate (42). The locking plate (42) can be moved horizontally to engage with the movable bracket (31) to limit the displacement of the movable bracket (31).

8. The material shaft feeding device as described in claim 7, characterized in that: The second mounting bracket (12) is provided with two guide plates (13) and two abutment plates (14); The two abutment plates (14) are arranged in parallel and spaced apart to limit the movement direction of the movable frame (31); Two guide plates (13) are disposed on both sides of the moving path of the moving frame (31) to guide the moving direction.

9. The material shaft feeding device as described in claim 8, characterized in that: The movable frame (31) is also provided with a second rolling wheel (35); The second roller (35) is disposed on the side of the movable frame (31) near the second mounting frame (12); The locking plate (42) cooperates with the second rolling wheel (35), and the locking plate (42) drives the second rolling wheel (35) to move along the extension direction of the movable frame (31); The rolling surface of the second rolling wheel (35) contacts the locking plate (42).

10. The material shaft feeding device as described in claim 1, characterized in that: The feed roller is used for rolls of plastic film or rolls of paper.

Images