A mobile shelf for automatic loading and unloading storage of plastic film rolls

Abstract

The present invention relates to the technical field of loading and unloading storage equipment, and in particular to a mobile rack for automatic loading and unloading and storage of plastic film rolls, comprising a mobile loading and unloading rack, a mobile storage rack, and a detachable connector. The mobile loading and unloading rack and the mobile storage rack are connected by the detachable connector. The mobile loading and unloading rack comprises a U-shaped rack with wheels at the bottom, and chain drive groups are provided on the left and right sides of the U-shaped rack. A plurality of clamps for clamping plastic film rolls are provided between the chains of the two chain drive groups along their motion trajectories. An electric slide is installed on the front side of the U-shaped rack, and a lifting member for lifting the plastic film roll is connected to the electric slide. The mobile loading and unloading rack and the mobile storage rack are connected by the detachable connector, which can be easily disassembled and assembled, improves flexibility and adaptability, and can quickly adjust the layout or function according to different working environments or needs, so that the mobile loading and unloading rack and the mobile storage rack can be used as independent units, thereby improving the versatility and practicality of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of loading, unloading and storing equipment, and in particular to a mobile shelf for automatic loading, unloading and storing of plastic film rolls. Background Art

[0002] The storage and handling of plastic film rolls is a crucial component of modern logistics and warehousing management. Especially in large-scale plastic film production workshops, loading, unloading, storage, and movement of plastic film rolls are crucial steps in the production process. Currently, mobile racks for loading, unloading, storage, and handling are commonly used to accomplish this task. While existing mobile racks for loading, unloading, storage, and handling meet basic loading, unloading, storage, and handling requirements to a certain extent, they still suffer from the following drawbacks in practical applications:

[0003] 1. The mobile storage racks and loading and unloading racks of traditional loading and unloading mobile racks are usually designed as an integrated structure. This integrated structure makes the equipment difficult to disassemble and assemble, limiting its flexibility and adaptability. It is impossible to quickly adjust the layout or function according to different working environments or needs. In addition, the difficulty in disassembly and assembly limits the possibility of using the equipment as an independent unit, reducing the versatility and practicality of the equipment.

[0004] 2. When traditional loading and unloading storage mobile racks are performing loading and unloading operations, it is necessary to first put a plastic film roll into the storage area and then move it out of the storage area before the next plastic film roll can be loaded and unloaded. This requires a long waiting time, resulting in the inability to achieve a continuous loading and unloading process, thereby affecting the loading and unloading efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a mobile rack for automatically loading and unloading plastic film rolls for storage, which can support continuous loading and unloading of plastic film rolls and is easy to load and unload in order to solve the above problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mobile rack for automatic loading and unloading storage of plastic film rolls, comprising a mobile loading and unloading rack, a mobile storage rack and a detachable connecting piece, wherein the mobile loading and unloading rack and the mobile storage rack are connected by a detachable connecting piece, and the mobile storage rack comprises a storage cabinet with an open front side and wheels at the bottom, wherein a plurality of groups of partitions are connected at intervals in the storage cabinet, a swing plate is hinged between two partitions of each group, a transition plate is hinged on the front side of each partition, a torsion spring is connected between the transition plate and the partition, and a plurality of plates for pushing the material into the storage cabinet are arranged at intervals on the inner wall at the rear side. The movable swing plate is driven by a pushing member to swing upward, and the mobile loading and unloading rack includes a U-shaped rack with wheels at the bottom, and chain drive groups are provided on the left and right sides of the U-shaped rack. A driving motor for driving the chain drive group to rotate is installed on the outside of the U-shaped rack, and a plurality of clamps for clamping the plastic film roll are provided between the chains of the two chain drive groups along their motion trajectory. An electric slide rail is installed on the front side of the U-shaped rack, and a lifting member for lifting the plastic film roll is connected to the electric slide rail. A YZ mobile platform is provided on the inner wall of the U-shaped rack, and a supporting member docked with the transition plate is connected to the YZ mobile platform for supporting the plastic film roll.

[0007] Preferably, the clamp includes a guide rod rotatably connected to the chains of the two chain transmission groups, connecting blocks are connected to the left and right sides of the guide rod, two slides located between the two connecting blocks are slidably connected to the guide rod, the lower parts of the two slides on the side close to each other are connected to the plug rod through a tension sensor, a bidirectional screw motor is provided between the two connecting blocks, the bidirectional screw on the bidirectional screw motor is threadedly connected to the two slides to drive the two slides towards or away from each other, distance sensor 1 is installed at the lower parts of the side close to each other, and distance sensor 2 is installed at the bottom of the guide rod.

[0008] Preferably, the lifting member includes a lifting plate connected to the electric slide rail, a weighing sensor is installed at the bottom of the lifting plate, the rear side of the lifting plate is slidingly connected to a positioning plate through a slide groove, the bottom of the lifting plate is rotatably connected to a screw, and the screw is threadedly connected to the positioning plate.

[0009] Preferably, the supporting member includes a supporting plate connected to the YZ movable platform, an insert block is connected at intervals on the rear side of the supporting plate, an insert block is opened on the front side of the transition plate, a guide plate is slidably connected to the supporting plate through a slide groove, the upper part of the guide plate is bent forward, the lower part of the guide plate is a slope, the bottom of the supporting plate is rotatably connected to screw rod 2, screw rod 2 is threadedly connected to the guide plate, and weighing sensor 2 is installed at the bottom of the supporting plate.

[0010] Preferably, the tops of the partition plate, the swing plate and the transition plate all adopt an inclined surface design with the front being higher and the back being lower.

[0011] Preferably, the detachable connecting parts include vertical plates and blocks. The front sides of the left and right outer walls of the storage cabinet are connected with vertical plates. The rear side of the U-shaped frame is rotatably connected with two groups of left and right T-shaped blocks. The vertical plates are provided with a group of openings that match the blocks.

[0012] Preferably, the pushing member comprises a cylinder mounted on the inner wall of the rear side of the storage cabinet, and a pushing block is connected to the telescopic rod of the cylinder.

[0013] Preferably, a plurality of L-shaped guide grooves are spaced apart on the left and right inner walls of the storage cabinet, and a sliding rod 1 and a sliding rod 2 are slidingly provided between the two corresponding L-shaped guide grooves on the left and right, and a cover plate 1 is connected between the sliding rod 1 and the sliding rod 2 connected in the same L-shaped guide groove, and the bottoms of the remaining partitions except the lowest partition are connected to mounting blocks, and an electric push rod is installed between the left and right mounting blocks and on the inner top of the storage cabinet, and the telescopic rod of the electric push rod is hinged to the sliding rod 2 directly in front of it.

[0014] Preferably, a plurality of material taking openings are spaced apart on the left and right sides of the storage cabinet, and a cover plate 2 is hingedly connected to each material taking opening.

[0015] Preferably, the bottoms of the other two groups of partitions except the lowest partition and the inner top of the storage cabinet are connected with rubber buffer plates, which are used to buffer and protect the plastic film roll and the pusher.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The mobile loading and unloading rack and the mobile storage rack are connected by detachable connectors, which can be easily disassembled and assembled, improve flexibility and adaptability, and can quickly adjust the layout or function according to different working environments or needs, so that the mobile loading and unloading rack and the mobile storage rack can be used as independent units, improving the versatility and practicality of the equipment.

[0018] 2. By setting multiple clamps on the chain drive group and coordinating the lifting parts and supporting parts, continuous loading and unloading of plastic film rolls can be achieved, which greatly shortens the waiting time and significantly improves the loading and unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the connection between the mobile loading and unloading rack and the mobile storage rack of the present invention.

[0020] Figure 2 This is a schematic diagram of the separation of the mobile loading and unloading rack and the mobile storage rack of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable loading and unloading rack of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamp of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the lifting member of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the movable storage rack and the supporting member of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the supporting member of the present invention.

[0026] Figure 8 This is a diagram showing the docking state of the mobile storage rack and the supporting member of the present invention.

[0027] Figure 9 It is a partial three-dimensional structural schematic diagram of the mobile storage rack of the present invention.

[0028] In the figure: 1-mobile loading and unloading rack, 11-U-shaped frame, 12-chain transmission group, 13-drive motor, 14-clamp, 141-guide rod, 142-connecting block, 143-slide plate, 144-tension sensor, 145-insertion rod, 146-bidirectional screw motor, 147-distance sensor 1, 148-distance sensor 2, 15-electric slide rail, 16-lifting piece, 161-lifting plate, 162-weighing sensor 1, 163-positioning plate, 164-screw 1, 17-YZ mobile platform, 18-supporting piece, 181-supporting plate, 182-insertion block, 183-guide plate , 184-screw two, 185-weighing sensor two, 2-mobile storage rack, 20-rubber buffer plate, 21-storage cabinet, 22-partition, 23-swing plate, 24-transition plate, 25-jack, 26-promoter, 261-cylinder, 262-push block, 271-L-shaped guide groove, 272-sliding rod one, 273-cover one, 274-sliding rod two, 275-mounting block, 276-electric push rod, 28-feeding port, 29-cover two, 3-detachable connector, 31-vertical plate, 32-block, 33-through port, 41-rotating shaft, 42-belt drive assembly. DETAILED DESCRIPTION

[0029] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0030] See also Figure 1 、 Figure 2 and Figure 6A mobile shelf for automatic loading and unloading storage of plastic film rolls, comprising a mobile loading and unloading rack 1, a mobile storage rack 2 and a detachable connector 3. The mobile loading and unloading rack 1 and the mobile storage rack 2 are connected by the detachable connector 3. The mobile storage rack 2 comprises a storage cabinet 21. The four corners of the bottom of the storage cabinet 21 are all equipped with wheels. The front side of the storage cabinet 21 is open. Three groups of partitions 22 are connected from top to bottom in the storage cabinet 21. The number of each group of partitions 22 is two. The two partitions 22 in each group are arranged on the left and right. A swing plate 23 is hinged between the two partitions 22 of each group. Each partition The front sides of the plates 22 are hinged with transition plates 24, and the hinges between the transition plates 24 and the partitions 22 are connected with torsion springs. The tops of the partitions 22, the swinging plates 23 and the transition plates 24 all adopt a slope design with a high front and a low back, so that the plastic film roll can be smoothly introduced backward into the storage cabinet 21. Three pushers 26 are provided on the inner wall of the rear side of the storage cabinet 21 from top to bottom. The three pushers 26 are respectively located on the lower sides of the three swinging plates 23, and are used to push the swinging plates 23 to swing upward. The pushers 26 include a cylinder 261 installed on the inner wall of the rear side of the storage cabinet 21, and a push block 262 is connected to the telescopic rod of the cylinder 261.

[0031] See also Figure 3-Figure 8The mobile loading and unloading rack 1 includes a U-shaped frame 11. The four corners of the bottom of the U-shaped frame 11 are equipped with wheels. Chain drive groups 12 are provided on the left and right sides of the U-shaped frame 11. The chain drive group 12 consists of two sprockets and a chain. The two sprockets are rotatably connected to the U-shaped frame 11. The two sprockets are arranged up and down, and the chain is sleeved between the two sprockets. A driving motor 13 is installed on the lower part of the right outer wall of the U-shaped frame 11. The output shaft of the driving motor 13 is connected to the lower sprocket of the right chain drive group 12 to drive the right chain drive group 12 to rotate. Six clamps 14 for clamping plastic film rolls are provided between the chains of the two chain drive groups 12 along their motion trajectory. The clamp 14 includes a guide rod 141 rotatably connected to the chains of the two chain drive groups 12. The left and right sides of the guide rod 141 are connected to connecting blocks 142, and two slides 143 located between the two connecting blocks 142 are slidably connected to the guide rod 141. The lower parts of the two slides 143 that are close to each other are connected to an insertion rod 145 through a tension sensor 144. A bidirectional screw motor 146 is provided between the two connecting blocks 142. The bidirectional screw on the bidirectional screw motor 146 is threadedly connected to the two slides 143 to drive the two slides 143 closer to or away from each other. The bidirectional screw motor 146 is a prior art and will not be described in detail here. A distance sensor 147 is installed at the lower parts of the two slides 143 that are close to each other. The distance sensor 147 is located on the upper side of the tension sensor 144, and the middle of the bottom of the guide rod 141 A distance sensor 148 is installed between the two ends of the U-shaped frame 11, and two electric slide rails 15 are installed on the front side of the U-shaped frame 11. A lifting member 16 for lifting the plastic film roll is connected between the sliders of the two electric slide rails 15. The lifting member 16 includes a lifting plate 161 connected to the sliders of the two electric slide rails 15. A weighing sensor 162 is installed at the bottom of the lifting plate 161. A slide groove is opened on the rear side of the lifting plate 161. A positioning plate 163 is slidably connected in the slide groove. The bottom of the lifting plate 161 is rotatably connected to a screw 164 located on the rear side of the weighing sensor 162. The screw 164 is threadedly connected to the positioning plate 163. The front side of the lifting plate 161 is bent upward to guide the plastic film roll backward to the positioning plate 163 to prevent the plastic film roll from falling from the lifting plate 1 61 slides forward, and YZ movable platforms 17 are installed on the inner walls of the left and right sides of the U-shaped frame 11. A supporting member 18 for supporting the plastic film roll is connected between the two YZ movable platforms 17. The supporting member 18 can be driven to move forward and backward and up and down through the YZ movable platform 17. The YZ movable platform 17 is a prior art and will not be described in detail here. The supporting member 18 includes a supporting plate 181 connected to the two YZ movable platforms 17. Four plug blocks 182 are connected to the rear side of the supporting plate 181 at intervals. Two left and right sockets 25 matching the plug blocks 182 are opened on the front side of the transition plate 24. A slide groove is opened on the supporting plate 181, and a guide plate 183 is slidably connected in the slide groove. The upper part of the guide plate 183 is bent forward to guide the plastic film roll.Thereby, the plastic film roll can be smoothly moved down to the rear side of the guide plate 183. The lower part of the guide plate 183 is a slope to guide the plastic film roll, so that the plastic film roll can be smoothly slid backward to the transition plate 24. The bottom of the supporting plate 181 is rotatably connected to the screw 2 184, and the screw 2 184 is threadedly connected to the guide plate 183. The bottom of the supporting plate 181 is equipped with a weighing sensor 2 185 located at the rear side of the screw 2 184. The upper part of the U-shaped frame 11 is rotatably connected to the rotating shaft 41. The rotating shaft 41 and the two chain drive groups 12 are connected with belts. The transmission assembly 42 consists of two pulleys and a belt. The two pulleys are respectively connected to the rotating shaft 41 and the upper sprocket of the chain drive group 12. The belt is placed between the two pulleys. The rotation of the upper sprocket of the right chain drive group 12 drives the rotating shaft 41 through the right belt drive assembly 42. The rotation of the rotating shaft 41 drives the upper sprocket of the left chain drive group 12 through the left belt drive assembly 42. This allows the chain drive groups 12 on both sides to rotate synchronously, thereby smoothly driving the clamp 14 to drive the plastic film roll to rotate.

[0032] See also Figure 2 The detachable connecting member 3 includes a vertical plate 31 and a block 32. The front sides of the left and right outer walls of the storage cabinet 21 are connected to the vertical plates 31. The rear side of the U-shaped frame 11 is rotatably connected to two groups of left and right T-shaped blocks 32. The number of blocks 32 in each group is three, and the three blocks 32 in each group are spaced apart from top to bottom. A group of through openings 33 matching the blocks 32 is opened on the vertical plate 31. The number of through openings 33 in each group is three, and the three through openings 33 in each group are spaced apart from top to bottom.

[0033] When the plastic film roll needs to be loaded into the storage cabinet 21 for storage, the plastic film roll is first placed on the lifting plate 161. The plastic film roll can be positioned by the positioning plate 163 to prevent the plastic film roll from being placed too far backward, ensuring that each plastic film roll is placed in the center and accurately. The positioning plate 163 can be adjusted in the front and rear directions by rotating the screw 164 to accommodate plastic film rolls of different sizes, ensuring that the positions of plastic film rolls of different sizes are accurately centered. After the plastic film roll is placed on the lifting plate 161, the weighing sensor 162 detects that the weight reaches a preset value. The weighing sensor 162 sends a signal to the controller (the controller is not shown in the figure, the controller is existing technology and will not be described here). After receiving the signal, the controller controls the electric slide 15 to drive the lifting member 16 to move upward, thereby lifting the plastic film roll until it is aligned with the insertion rod 145 on the front lower end clamp 14. When distance sensor 2 148 on the front lower clamp 14 detects that the distance to the plastic film roll has reached a preset value, distance sensor 148 sends a signal to the controller. After receiving the signal, the controller controls the bidirectional screw motor 146 on the front lower clamp 14 to rotate, thereby driving the two slides 143 on the front lower clamp 14 toward each other. The two insertion rods 145 on the front lower clamp 14 then move toward each other and insert into the take-up drum of the plastic film roll. When distance sensor 1 147 on the front lower clamp 14 detects that the distance to the plastic film roll has reached a preset value, distance sensor 147 sends a signal to the controller. After receiving the signal, the controller controls the bidirectional screw motor 146 to turn off. The controller then controls the electric slide 15 to drive the lifting member 16 downward to avoid the next clamp 14.

[0034] Then, the drive motor 13 is controlled to drive the right chain transmission group 12 to drive the clamp 14 to rotate, so as to rotate the next clamp 14 that does not clamp the plastic film roll to the front lower side, and rotate the clamp 14 that clamps the plastic film roll to the rear side. Since the guide rod 141 is rotatably connected to the chain of the chain transmission group 12, the entire clamp 14 can always remain in a stable downward state during the rotation process, thereby enabling the plastic film roll to always remain stable downward during the rotation process, ensuring that the plastic film roll can be smoothly lowered onto the supporting member 18. Initially, the supporting member 18 is aligned with the uppermost transition plate 24. The YZ movable platform 17 is controlled to drive the supporting member 18 to move backward, inserting the insert block 182 into the socket 25 on the uppermost transition plate 24 to dock the supporting member 18 with the uppermost transition plate 24, so as to prevent the subsequent transition plate 24 from being squeezed downward by the plastic film roll. After the clamp 14 rotates and lowers the plastic film roll onto the support plate 181 and guide plate 183 of the support member 18, the support plate 181 and guide plate 183 can support the plastic film roll, and the tension on the insertion rod 145 is reduced. The tension sensor 144 detects that the tension is less than the preset value, and the tension sensor 144 sends a signal to the controller. After receiving the signal, the controller controls the bidirectional screw motor 146 to reverse, thereby driving the two slides 143 to drive the two insertion rods 145 away from each other and disengage from the plastic film roll, thereby loosening the plastic film roll. The slope at the bottom of the guide plate 183 smoothly guides the plastic film roll backward to the transition plate 24. Because the partition 22, the swing plate 23, and the top of the transition plate 24 all adopt a sloped design with a high front and a low back, the plastic film roll can be smoothly guided backward into the storage cabinet 21 for storage. After the plastic film roll slides off the supporting member 18, the YZ movable platform 17 is controlled to drive the supporting member 18 to move forward and disengage from the transition plate 24 to avoid the clamp 14 and prevent the clamp 14 from rotating. When the uppermost partition 22 is full, the YZ movable platform 17 is controlled to drive the supporting member 18 to move down and align with the next transition plate 24. In this way, all the partitions 22 can be filled with plastic film rolls, thereby realizing the classification and separate storage of the plastic film rolls. The above is the loading operation process (loading mode) of the plastic film roll.

[0035] When it is necessary to unload the plastic film roll stored in the storage cabinet 21, the YZ movable platform 17 is first controlled to drive the supporting member 18 to move backward, inserting the insert block 182 into the socket 25 on the lowermost transition plate 24 to connect the supporting member 18 and the lowermost transition plate 24. Then, the telescopic rod of the lowermost cylinder 261 is controlled to extend to push the lowermost push block 262 upward. The upward movement of the lowermost push block 262 pushes the lowermost swing plate 23 to swing upward, thereby causing the plastic film roll to roll forward onto the supporting plate 181 and the guide plate 183. After the plastic film roll rolls onto the support plate 181 and guide plate 183, the second weighing sensor 185 detects that the weight has reached a preset value. The weighing sensor 185 then sends a signal to the controller. After receiving the signal, the controller controls the YZ movable platform 17 to drive the support member 18 forward an appropriate distance, thereby causing the plastic film roll to roll forward again an appropriate distance to align with the insertion rod 145 on the clamp 14. The telescopic rod of the lowermost cylinder 261 is then controlled to retract, pulling the lowermost push block 262 downward. The lowermost swing plate 23 swings downward under the action of gravity, and the plastic film roll on the swing plate 23 moves back into the storage cabinet 21. When distance sensor 2 148 on the clamp 14 detects that the distance to the plastic film roll has reached a preset value, distance sensor 148 sends a signal to the controller. The controller, upon receiving the signal, controls the bidirectional screw motor 146 on the clamp 14 to rotate, thereby driving the two slides 143 on the clamp 14 to drive the two insertion rods 145 toward each other and insert them into the take-up drum of the plastic film roll. When distance sensor 147 on the clamp 14 detects that the distance to the plastic film roll has reached a preset value, distance sensor 147 sends a signal to the controller. The controller, upon receiving the signal, controls the bidirectional screw motor 146 to turn off.

[0036] Then, the YZ movable platform 17 is controlled to drive the supporting member 18 to continue to move forward and disengage from the transition plate 24 to avoid the clamp 14. Then, the drive motor 13 is controlled to drive the right chain transmission group 12 to drive the clamp 14 to reverse, so as to reverse the next clamp 14 that is not clamping the plastic film roll to the rear side, and reverse the clamp 14 that is clamping the plastic film roll to the front side. Then, the electric slide 15 is controlled to drive the lifting member 16 to move upward. After the lifting plate 161 of the lifting member 16 moves upward, it can support the plastic film roll, and the tension on the insertion rod 145 is reduced. The tension sensor 144 detects that the tension is less than the preset value. The tension sensor 144 sends a signal to the controller. After receiving the signal, the controller controls the bidirectional screw motor 146 to reverse, thereby driving the two slides 143 to drive the two insertion rods 145 away from each other and disengage from the plastic film roll, thereby loosening the plastic film roll. The gravity of the plastic film roll is all pressed on the lifting plate 161. The weighing sensor 162 detects that the weight reaches the preset value. The weighing sensor 162 sends a signal to the controller. After receiving the signal, the controller controls the electric slide rail 15 to drive the lifting member 16 to move the plastic film roll downward to avoid the clamp 14. The above is the unloading operation process of the plastic film roll (unloading mode).

[0037] Because the transition plate 24 is hinged to the front side of the partition 22, and a torsion spring is connected to the hinge between the transition plate 24 and the partition 22, when the plastic film roll rotates and contacts the transition plate 24, the plastic film roll continues to rotate, pushing the transition plate 24 to rotate to avoid the plastic film roll, and the torsion spring is compressed accordingly, ensuring that the plastic film roll can smoothly pass over the transition plate 24 for loading and unloading. After the plastic film roll passes over the transition plate 24, the torsion spring returns the transition plate 24 to a horizontal state. In this way, by providing multiple clamps 14 on the chain drive group 12 and cooperating with the lifting member 16 and the supporting member 18, the device can realize continuous loading and unloading of plastic film rolls, greatly shortening waiting time and significantly improving loading and unloading efficiency.

[0038] See also Figure 6 and Figure 9 , three L-shaped guide grooves 271 are spaced apart from top to bottom on the inner walls of the left and right sides of the storage cabinet 21, and a sliding rod 1 272 and a sliding rod 2 274 are slidingly provided between the two corresponding L-shaped guide grooves 271 on the left and right, and a cover plate 1 273 is connected between the sliding rod 1 272 and the sliding rod 2 274 connected in the same L-shaped guide groove 271, and the bottoms of the remaining partitions 22 except the lowest partition 22 are connected to two front and rear mounting blocks 275, and electric push rods 276 are installed between the left and right mounting blocks 275 and on the inner top of the storage cabinet 21, and the telescopic rods of the three electric push rods 276 are hinged to the three sliding rods 274 respectively.

[0039] The telescopic rod of the electric push rod 276 is controlled to extend, pushing the second sliding rod 274 and the cover plate 1 273 forward. Guided by the L-shaped guide slot 271 and the first sliding rod 272, the cover plate 1 273 moves forward and downward at the same time. After the cover plate 1 273 moves forward and downward, it can seal the storage cabinet 21 to prevent the plastic film roll from rolling out of the storage cabinet 21. When the plastic film roll in the storage cabinet 21 needs to be removed, the telescopic rod of the electric push rod 276 is controlled to retract, pulling the second sliding rod 274 and the cover plate 1 273 backward. Guided by the L-shaped guide slot 271 and the first sliding rod 272, the cover plate 1 273 moves backward and upward at the same time. The cover plate 1 273 moves backward and upward to release the seal of the storage cabinet 21.

[0040] See also Figure 9 Except for the bottom partition 22, the bottoms of the other two groups of partitions 22 and the inner top of the storage cabinet 21 are connected with rubber buffer plates 20. The bottom of the rubber buffer plate 20 is in contact with the partition 22 and the swing plate 23 on its lower side. The rubber buffer plate 20 is located on the rear side of the electric push rod 276 and in front of the push member 26. The rubber buffer plate 20 can reduce the hard collision between the plastic film roll and the storage cabinet 21 or the push member 26, thereby achieving buffering protection for the plastic film roll and the push member 26.

[0041] See also Figure 8 The left and right sides of the storage cabinet 21 are each spaced apart from each other from top to bottom with three material taking openings 28 , and each material taking opening 28 is hinged with a cover plate 29 .

[0042] If the plastic film rolls are to be loaded and unloaded in batches by means of a forklift, the cover plate 29 can be opened, and the plastic film rolls can be placed in the storage cabinet 21 and taken out from the storage cabinet 21 by the forklift through the material taking-out opening 28 .

[0043] The above-described embodiments merely represent preferred embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous modifications, improvements, and substitutions without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A mobile shelf for automatic loading and unloading storage of plastic film rolls, characterized in that: The invention comprises a mobile loading and unloading rack (1), a mobile storage rack (2) and a detachable connecting member (3), wherein the mobile loading and unloading rack (1) and the mobile storage rack (2) are connected via the detachable connecting member (3), the mobile storage rack (2) comprises a storage cabinet (21) with an open front side and wheels at the bottom, a plurality of groups of partitions (22) are connected at intervals in the storage cabinet (21), a swing plate (23) is hinged between two partitions (22) of each group, a transition plate (24) is hinged on the front side of each partition (22), a torsion spring is connected between the transition plate (24) and the partition (22), a plurality of pushers (26) for pushing the swing plate (23) to swing upward are provided at intervals on the inner wall of the rear side of the storage cabinet (21), and the mobile loading and unloading rack ( 1) comprising a U-shaped frame (11) with wheels at the bottom, a chain drive group (12) being provided on both the left and right sides of the U-shaped frame (11), a driving motor (13) being installed on the outside of the U-shaped frame (11) for driving the chain drive group (12) to rotate, a plurality of clamps (14) for clamping a plastic film roll being provided at intervals along the motion trajectory between the chains of the two chain drive groups (12), an electric slide rail (15) being installed on the front side of the U-shaped frame (11), a lifting member (16) for lifting the plastic film roll being connected to the electric slide rail (15), a YZ movable platform (17) being provided on the inner wall of the U-shaped frame (11), a supporting member (18) being connected to the YZ movable platform (17) and being connected to the transition plate (24) for supporting the plastic film roll; The clamp (14) includes a guide rod (141) rotatably connected to the chains of the two chain transmission groups (12), the left and right sides of the guide rod (141) are connected to connecting blocks (142), the guide rod (141) is slidably connected to two slides (143) located between the two connecting blocks (142), the lower parts of the two slides (143) on the side close to each other are connected to an insertion rod (145) through a tension sensor (144), a bidirectional screw motor (146) is provided between the two connecting blocks (142), the bidirectional screw on the bidirectional screw motor (146) is threadedly connected to the two slides (143) to drive the two slides (143) to move closer to or away from each other, the lower parts of the two slides (143) on the side close to each other are each installed with a distance sensor 1 (147), and the bottom of the guide rod (141) is installed with a distance sensor 2 (148); The lifting member (16) includes a lifting plate (161) connected to the electric slide rail (15), a weighing sensor (162) is installed at the bottom of the lifting plate (161), a positioning plate (163) is slidably connected to the rear side of the lifting plate (161) through a slide groove, and a screw (164) is rotatably connected to the bottom of the lifting plate (161), and the screw (164) is threadedly connected to the positioning plate (163); The supporting member (18) includes a supporting plate (181) connected to the YZ movable platform (17), the supporting plate (181) is spaced apart and connected with an insert block (182), the front side of the transition plate (24) is provided with a socket (25) matching the insert block (182), the supporting plate (181) is slidably connected with a guide plate (183) through a slide groove, the upper part of the guide plate (183) is bent forward, the lower part of the guide plate (183) is a slope, the bottom of the supporting plate (181) is rotatably connected with a screw rod (184), the screw rod (184) is threadedly connected to the guide plate (183), and a weighing sensor (185) is installed at the bottom of the supporting plate (181); The tops of the partition plate (22), the swing plate (23) and the transition plate (24) all adopt a slope design with the front higher and the back lower.

2. The mobile shelf for automatic loading and unloading storage of plastic film rolls according to claim 1, characterized in that: The detachable connecting member (3) includes a vertical plate (31) and a clamping block (32). The front sides of the left and right outer walls of the storage cabinet (21) are connected to the vertical plate (31). The rear side of the U-shaped frame (11) is rotatably connected to two groups of left and right T-shaped clamping blocks (32). The vertical plate (31) is provided with a group of through openings (33) that match the clamping blocks (32).

3. The mobile shelf for automatic loading and unloading and storage of plastic film rolls according to claim 2, characterized in that: The pushing member (26) comprises a cylinder (261) mounted on the inner wall of the rear side of the storage cabinet (21), and a pushing block (262) is connected to the telescopic rod of the cylinder (261).

4. The mobile shelf for automatic loading and unloading and storage of plastic film rolls according to claim 3, characterized in that: A plurality of L-shaped guide grooves (271) are spaced apart on the inner walls on the left and right sides of the storage cabinet (21), and a sliding rod (272) and a sliding rod (274) are slidably provided between the two corresponding L-shaped guide grooves (271) on the left and right sides, and a cover plate (273) is connected between the sliding rod (272) and the sliding rod (274) connected in the same L-shaped guide groove (271), and the bottoms of the remaining partitions (22) except the lowest partition (22) are connected to mounting blocks (275), and electric push rods (276) are installed between the mounting blocks (275) on the left and right sides and on the inner top of the storage cabinet (21), and the telescopic rod of the electric push rod (276) is hinged to the sliding rod (274) directly in front of it.

5. The mobile shelf for automatic loading and unloading and storage of plastic film rolls according to claim 1, characterized in that: A plurality of material taking openings (28) are spaced apart on both the left and right sides of the material storage cabinet (21), and a second cover plate (29) is hingedly connected to each material taking opening (28).

6. The mobile shelf for automatic loading and unloading and storage of plastic film rolls according to claim 3, characterized in that: The bottoms of the other two groups of partitions (22) except the lowest partition (22) and the inner top of the storage cabinet (21) are connected with rubber buffer plates (20), and the rubber buffer plates (20) are used to buffer and protect the plastic film roll and the pusher (26).

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