Plant fiber raw material feeding equipment

Abstract

This invention relates to the field of plant fiber processing technology, specifically to a plant fiber raw material feeding device, including a frame, a sliding device, a lifting device, a hopper, and a control box. A limit block is installed on the top of the frame. The sliding device includes a lifting frame, a swing arm, and a pull rod, with one end of the swing arm hinged to one end of the pull rod. Both the lifting device and the control box are mounted on the frame. The output end of the lifting device is connected to the lifting frame. The lifting device can drive the lifting frame to rise and fall relative to the frame. The two sides of the hopper are hinged to the lifting frame, and a discharge port is provided at the bottom of the hopper. A gate mechanism is hinged to the discharge port, which can block the discharge port. The middle part of the swing arm is hinged to the hopper, and the other end of the pull rod is hinged to the outer wall of the hopper near the discharge port. The end of the pull rod near the hopper is hinged to the input end of the gate mechanism. The control box is electrically connected to the lifting device. This feeding device requires little unloading space, and materials are less likely to scatter during the feeding and unloading process.

Description

Technical Field

[0001] This invention relates to the field of plant fiber feeding equipment technology, and specifically to a plant fiber raw material feeding equipment. Background Technology

[0002] In the field of plant fiber product manufacturing, the processing flow generally involves first making dry fiber raw materials into fiber pulp, then pressing and filtration the fiber pulp into shape, and finally hot-pressing to obtain the plant fiber product. Specifically, in the plant fiber pulping stage, workers need to put dry plant fiber sheets or scraps into an elevator, which then crushes the plant fiber sheets or scraps. The crushed pulp is then conveyed by a conveyor belt to a pulping tank where water and additives are added and stirred to obtain the plant fiber pulp.

[0003] In the plant fiber feeding stage, the main method of feeding is by elevator. Currently, bucket elevators are generally used. Bucket elevators typically employ multi-segment track settings, with the track changes forcing the buckets to tilt and dispose of the material. For example, patent CN210504363U discloses a bucket lifting device that uses an inclined track frame with horizontal tracks. However, this design results in a large overall space requirement, making it unsuitable for high-height lifting. Furthermore, the buckets require a large space to tilt during the tilting process, making them susceptible to environmental constraints. Moreover, due to the tilting discharge method, the material inside the buckets is easily thrown out due to inertia during tilting. Summary of the Invention

[0004] In order to overcome one of the shortcomings of the prior art, the purpose of this invention is to provide a plant fiber raw material feeding device. This plant fiber raw material feeding device is less affected by the environment during use, requires a small unloading space, and the material is not easily scattered during the feeding process.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] A plant fiber raw material feeding device, including

[0007] The frame has a limit block at its top;

[0008] The sliding device includes a lifting frame, a swing arm, and a pull rod, wherein one end of the swing arm is slidably hinged to one end of the pull rod;

[0009] A lifting device is mounted on the frame; the output end of the lifting device is connected to the lifting frame; the lifting device is capable of driving the lifting frame to rise and fall relative to the frame.

[0010] The hopper is hinged to the lifting frame on both sides. The bottom of the hopper is provided with a discharge port. A gate mechanism is hinged to the discharge port. The gate mechanism can automatically block the discharge port.

[0011] A control box is mounted on the frame and is electrically connected to the lifting device;

[0012] The swing arm is hinged to the hopper at its middle section, and the other end of the pull rod is hinged to the outer wall of the hopper near the discharge port. The middle section of the pull rod is hinged to the input end of the gate mechanism. When the lifting frame gradually approaches the limiting block, one end of the swing arm first contacts the limiting block and generates relative displacement. The other end of the swing arm can gradually pull the bottom of the hopper outward through the pull rod and drive the gate mechanism to gradually open the discharge port.

[0013] Furthermore, the gate mechanism includes a sealing plate and a drive arm. One side of the sealing plate is hinged to the side of the discharge port near the swing arm. A reset mechanism is provided on the hopper. The reset mechanism can drive the sealing plate to block the discharge port. A push arm is provided on the side of the sealing plate that is hinged to the discharge port. One end of the drive arm is hinged to the push arm. A limiting groove is provided on the other end of the drive arm. The middle part of the pull rod is slidably hinged in the limiting groove.

[0014] Furthermore, the reset mechanism is a reset torsion spring, the sealing plate and the discharge port are hinged by a rotating shaft, the reset torsion spring is mounted on the rotating shaft, and the two ends of the reset torsion spring abut against the outer wall of the sealing plate and the hopper, respectively.

[0015] Furthermore, the hopper is provided with a locking block that cooperates with the movable side of the sealing plate. The locking block is provided with a limiting step on the side near the discharge port. The outward end of the locking block is deformable, and the outward end of the locking block is provided with a slope on the side of the limiting step. When the movable side of the sealing plate can be locked on the limiting step, the sealing plate blocks the discharge port.

[0016] Furthermore, a support wheel is rotatably provided on the end of the locking block, and a rotatable support wheel is also provided on the back of the sealing plate.

[0017] Furthermore, the lifting frame is provided with a limiting mechanism, and the outer wall of the hopper is provided with a limiting groove that cooperates with the limiting mechanism. When the lifting frame drives the limiting mechanism to abut against the limiting block, the limiting mechanism can be pulled out from the limiting groove.

[0018] Furthermore, the limiting mechanism includes a sliding rod, a wedge block, a limiting pin, and a return spring. The sliding rod is movably inserted into the limiting cylinder at the top of the lifting frame. The wedge block is located at the lower end of the sliding rod, and a clearance groove is provided on the wedge block along the length direction of the sliding rod. The limiting pin movably passes through the limiting cylinder, with one end able to be inserted into the limiting groove, and the other end of the limiting pin also movably protruding from the limiting cylinder. An end portion is provided on the upper part of the limiting pin. The return spring is fitted onto the limiting pin, and its two ends respectively abut against the end portion and the side of the limiting cylinder away from the hopper. The upper end of the sliding rod is higher than the upper end of the swing arm. When the lifting frame drives the sliding rod to abut against the limiting block, the end portion can cooperate with the wedge-shaped surface of the wedge block to pull the limiting pin out of the limiting groove.

[0019] Furthermore, rails are provided on both sides of the frame, and the lifting frame is mounted on both sides of the rails by two sets of rollers.

[0020] Furthermore, a driving part is provided on one end of the swing arm near the limiting block. The outward end of the driving part gradually tilts towards the side of the hopper away from the swing arm. An abutting wheel is rotatably provided on the end of the driving part, and the outer periphery of the abutting wheel can abut against the limiting block.

[0021] Furthermore, the lifting device includes a lifting motor, a chain, and sprockets. Two sprockets are provided and are rotatably mounted on the top and bottom of the frame via a drive shaft, respectively. The chain is wound around the two sprockets. The lifting motor is mounted on the bottom of the frame and its output end is connected to the drive shaft at the bottom. The lifting frame is connected to the chain, and the control box is electrically connected to the lifting motor.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention provides a plant fiber raw material feeding device that improves upon existing elevators by adopting a bottom discharge method. This avoids the need for a tipping discharge method, reducing material spillage due to inertia during discharge. Furthermore, the bottom discharge method requires less discharge space, making it suitable for confined production environments. A swing arm and a limit block work together to cause the swing arm to swing, which in turn uses a pull rod to gradually pull the bottom of the hopper outwards. This allows for automatic unloading upon reaching the designated position, while simultaneously delaying the opening of the discharge port via a gate mechanism. This allows the material in the hopper to be discharged outwards. The entire feeding process simultaneously adjusts the discharge direction and opens the discharge port, achieving two goals at once. It also eliminates the need for excessive control systems, reducing equipment costs. The purely mechanical structure ensures high overall reliability and adaptability to complex working environments.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 This is a front view of an embodiment of the present invention;

[0026] Figure 2 This is a right view of an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the hopper during the lifting stage in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the hopper during the unloading stage in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the sliding device in an embodiment of the present invention;

[0030] Figure 6 This is a partial structural schematic diagram of the sliding device in another embodiment of the present invention;

[0031] Figure 7 yes Figure 6 A magnified view of a portion of point A in the middle.

[0032] Explanation of icon numbers:

[0033] Frame 100, limit block 110, track 120, sliding device 200, lifting frame 210, swing arm 220, drive unit 221, abutment wheel 222, traction rod 230, limit mechanism 240, sliding rod 241, wedge block 242, limit pin 243, return spring 244, clearance groove 245, end 246, roller 250, lifting device 300, lifting motor 310, chain 320, sprocket 330, drive shaft 340, hopper 400, discharge port 410, gate mechanism 420, sealing plate 421, drive arm 422, push arm 423, limiting groove 424, rotating shaft 425, locking block 430, limiting step 431, slope 432, support wheel 433, limiting groove 440, control box 500. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] See Figures 1 to 7This application provides a plant fiber raw material feeding device, including a frame 100, a sliding device 200, a lifting device 300, and a hopper 400. A limit block 110 is provided at the top of the frame 100. The sliding device 200 includes a lifting frame 210, a swing arm 220, and a pull rod 230, with one end of the swing arm 220 slidably hinged to one end of the pull rod 230. The lifting device 300 is mounted on the frame 100. The output end of the lifting device 300 is connected to the lifting frame 210. The lifting device 300 can drive the lifting frame 210 to rise and fall relative to the frame 100. The hopper 400 is hinged to the lifting frame 210 on both sides, and a discharge port 410 is provided at the bottom of the hopper 400. A gate mechanism 420 is hinged to the discharge port 410. The device 0 can automatically block the discharge port 410; the other end of the pull rod 230 is hinged to the outer wall of the hopper 400 near the discharge port 410, the middle part of the swing arm 220 is hinged to the hopper 400, and the middle part of the pull rod 230 is hinged to the input end of the gate mechanism 420; the control box 500 is installed on the frame 100 and is electrically connected to the lifting device 300; when the lifting frame 210 gradually approaches the limiting block 110, one end of the swing arm 220 first contacts the limiting block 110 and generates relative displacement, and the other end of the swing arm 220 can gradually pull the bottom of the hopper 400 outward through the pull rod 230 and drive the gate mechanism 420 to gradually open the discharge port 410.

[0036] In the above embodiments, the center of the hopper 400 and the center of gravity of the lifting frame 210 are on the same vertical plane, which can prevent the hopper 400 from tipping over due to an unstable center of gravity during the lifting stage. The gate mechanism 420 is mainly for blocking the discharge port 410, but the main application scenario in this application is for feeding dry plant fibers, so the gate mechanism 420 does not need to strictly block the discharge port 410. Of course, in some application scenarios, a seal can be provided between the gate mechanism 420 and the discharge port 410, so that fluid or particulate materials can be lifted. In particular, in order to facilitate the loading of the hopper 400 by external equipment, the upper opening of the hopper 400 is provided with an inclined bevel on the side away from the swing arm 220, which is beneficial for the loading of external equipment. The main function of the control box 500 is to facilitate the operation of the lifting device 300 by the operator. In some improved versions, the control box 500 includes a control panel, a controller, a power supply, and a signal processor. The control panel is electrically connected to the controller, the power supply provides power to the controller, and the signal processor is electrically connected to both the controller and the lifting device 300. To enhance automation, a limit switch is also installed on the limit block 110, which is electrically connected to the signal processor. When the end of the swing arm 220 that engages with the limit block 110 moves into the working area of ​​the limit switch, the limit switch sends a command to the signal processor, which in turn sends a signal to the controller. The controller then stops the lifting device 300 from lifting.

[0037] It should be noted that the lifting device 300 can be driven by a cylinder, chain, or screw mechanism. The frame 100 is vertically arranged to reduce the space occupied at its top. Furthermore, the lifting device 300 moves linearly on the frame 100. To facilitate the operation of the lifting device 300, in one embodiment of this application, tracks 120 are provided on both sides of the frame 100, and the lifting frame 210 is rotatably mounted on both sides within the tracks 120 via two sets of rollers 250. This arrangement facilitates the displacement of the lifting frame 210 relative to the frame 100.

[0038] This plant fiber raw material feeding equipment improves upon the existing elevator by adopting a bottom discharge method for the hopper 400. This avoids the need for a tipping method, reducing the risk of material scattering due to inertia during discharge. Furthermore, the bottom discharge method requires less discharge space, making it suitable for confined production environments. The swing arm 220, in conjunction with the limit block 110, causes the swing arm 220 to swing, which in turn uses the pull rod 230 to gradually pull the bottom of the hopper 400 outward. This allows for automatic unloading upon reaching the designated position, while simultaneously driving the gate mechanism 420 to gradually open the discharge port 410, thus expelling the material from the hopper 400. The entire feeding process simultaneously adjusts the discharge direction and opens the discharge port 410, achieving two goals at once. This eliminates the need for excessive control systems, reducing equipment costs. The purely mechanical structure ensures high overall reliability and adaptability to complex working environments.

[0039] See Figures 1 to 4To enable the pull rod 230 to swing towards the side of the swing arm 220 from the bottom of the hopper 400, and simultaneously delay the opening of the discharge port 410 by the gate mechanism 420, in one embodiment of this application, the gate mechanism 420 includes a sealing plate 421 and a drive arm 422. One side of the sealing plate 421 is hinged to the side of the discharge port 410 near the swing arm 220. A reset mechanism is provided on the hopper 400, which can drive the sealing plate 421 to block the discharge port 410. A push arm 423 is provided on the side of the sealing plate 421 that is hinged to the discharge port 410. One end of the drive arm 422 is hinged to the push arm 423, and a limiting groove 424 is provided on the other end of the drive arm 422. The middle part of the pull rod 230 is slidably hinged in the limiting groove 424. Specifically, when the pull rod 230 first pulls the bottom of the hopper 400 to swing towards one side of the swing arm 220, the end of the pull rod 230 slides within the limiting groove 424. After the pull rod 230 pulls the bottom of the hopper 400 to swing towards one side of the swing arm 220 to a preset angle, the end of the pull rod 230 moves to the end of the limiting groove 424. As the pull rod 230 continues to pull the bottom of the hopper 400 upwards, it drives the push arm 423 via the drive arm 422 to rotate around the point where the sealing plate 421 and the discharge port 410 are hinged, thereby gradually opening the discharge port 410 at the movable end of the sealing plate 421. Conversely, when the lifting device 300 drives the lifting frame 210 to begin descending, the angle between the upper end of the drive arm 422 and the limiting block 110 gradually decreases. Simultaneously, due to the weight of the hopper 400, the pulling rod 230 gradually lowers to the bottom of the hopper 400, causing the hopper 400 to gradually reset and return to a vertical state. At this time, the reset mechanism can force the sealing plate 421 to gradually block the discharge port 410. In this application, the reset mechanism is a spring-like structure. Due to the use of a linkage design in this application, the reset mechanism does not employ a cylinder-driven reset method. In the above embodiment, one end of the swing arm 220 is slidably hinged to one end of the pulling rod 230. In practice, a sliding structure similar to the limiting groove 424 can also be provided on the swing arm 220. This way, when one end of the pulling rod 230 is driven and pulled by the swing arm 220, the end of the pulling rod 230 can slide on the sliding structure of the swing arm 220, while also achieving the hinge function.

[0040] Furthermore, in the above embodiments, to facilitate reset and adapt to the aforementioned linkage structure, the reset mechanism is a reset torsion spring. The sealing plate 421 and the discharge port 410 are hinged together by a rotating shaft 425. The reset torsion spring is mounted on the rotating shaft 425, and its two ends abut against the sealing plate 421 and the outer wall of the hopper 400, respectively. In its natural state, the reset torsion spring forces the sealing plate 421 to remain pressed against the edge of the discharge port 410 to block it. After the bottom of the hopper 400 is pulled up until the pulling rod 230 can pull the push arm 423 via the drive arm 422, the reset torsion spring begins to gradually be twisted under force.

[0041] In the above embodiments, during the actual lifting process, when the hopper 400 is full of material, the sealing plate 421 is forced to block the discharge port 410 solely by the return torsion spring. This places very high torque requirements on the return torsion spring, and the return torsion spring is also prone to fatigue. Therefore, in one embodiment of this application, the hopper 400 is provided with a locking block 430 that cooperates with the movable side of the sealing plate 421. The locking block 430 is provided with a limiting step 431 on the side near the discharge port 410. The outward end of the locking block 430 is deformable, and a slope 432 is provided on the side of the limiting step 431 at the outward end of the locking block 430. When the movable side of the sealing plate 421 can be locked onto the limiting step 431, the sealing plate 421 blocks the discharge port 410. The movable side of the sealing plate 421 rests on the limiting step 431, which greatly reduces the torque required for the reset torsion spring to force the sealing plate 421 to always block the discharge port 410 when the hopper 400 is filled with material. At the same time, the deformable locking block 430 can also force the movable side of the sealing plate 421 to always lock the discharge port 410.

[0042] In some embodiments, in order to effectively isolate the hopper 400 from the ground or prevent it from getting entangled with debris on the ground when it is in the loading station, in one embodiment of this application, a support wheel 433 is rotatably provided on the end of the locking block 430, and a rotatable support wheel 433 is also provided on the back of the sealing plate 421. This arrangement allows the weight of the hopper 400 and the material inside it to be supported by the support wheel 433 on the locking block and the support wheel 433 on the back of the sealing plate 421 during the non-lifting stage, which can effectively reduce the impact of the material spilled into the hopper 400 on the lifting device 300 during the loading process, and can effectively protect the lifting device 300.

[0043] See further Figure 6 and Figure 7To prevent the entire feeding equipment from shaking due to the swaying of the hopper 400 during the lifting phase, in one embodiment of this application, a limiting mechanism 240 is provided on the lifting frame 210, and a limiting groove 440 that cooperates with the limiting mechanism 240 is provided on the outer wall of the hopper 400. When the lifting frame 210 drives the limiting mechanism 240 to abut against the limiting block 110, the limiting mechanism 240 can be pulled out of the limiting groove 440. In fact, the upper end of the limiting mechanism 240 is higher than the upper end of the swing arm 220, so that the limiting mechanism 240 contacts the limiting block 110 before the swing arm 220. This allows the limiting mechanism 240 to be pulled out of the limiting groove 440 to release the sway restriction on the hopper 400 when the swing arm 220 begins to pull the bottom of the hopper 400 outward via the pull rod 230. The limit mechanism 240 can be a structure configured for a trigger switch and a telescopic motor, or it can be a linkage structure.

[0044] See further Figure 6 and Figure 7 To achieve the function of the aforementioned limiting mechanism 240, in one embodiment of this application, the limiting mechanism 240 includes a sliding rod 241, a wedge block 242, a limiting pin 243, and a return spring 244. The sliding rod 241 is movably inserted into the limiting cylinder 211 at the top of the lifting frame 210. The wedge block 242 is disposed at the lower end of the sliding rod 241, and an clearance groove 245 is provided on the wedge block 242 along the length direction of the sliding rod 241. The limiting pin 243 movably passes through the limiting cylinder 211, and one end can be inserted into the limiting groove 440. The other end of 43 also extends through the limiting cylinder 211. The limiting pin 243 is provided with an end 246. The return spring 244 is fitted on the limiting pin 243, and its two ends respectively abut against the end 246 and the side of the limiting cylinder 211 away from the hopper 400. The upper end of the sliding rod 241 is higher than the upper end of the swing arm 220. When the lifting frame 210 drives the sliding rod 241 to abut against the limiting block 110, the end 246 can cooperate with the wedge surface of the wedge block 242 to pull the limiting pin 243 out of the limiting groove 440.

[0045] In the above embodiment, the wedge-shaped surface of the wedge block 242 forces the limiting pin 243 to move away from the limiting groove 440, while the return spring 244 is compressed. During the descent phase of the lifting device 300, due to the lack of force from the limiting block 110 on the wedge block 242, the elastic force released by the return spring 244 allows the wedge block 242 to rise within the limiting cylinder 211, while the limiting pin 243 automatically inserts into the limiting groove 440 to relatively lock the hopper 400 and the lifting frame 210.

[0046] See you again Figures 1 to 4 To facilitate smooth relative displacement between the upper end of the swing arm 220 and the limiting block 110, sliding friction can be used during actual use. However, with prolonged use, the upper end of the swing arm 220 is prone to wear. Therefore, in an improved embodiment of this application, a driving part 221 is provided on the end of the swing arm 220 near the limiting block 110. The outward end of the driving part 221 gradually tilts towards the side of the hopper 400 away from the swing arm 220. An abutment wheel 222 is rotatably provided on the end of the driving part 221, and the outer circumference of the abutment wheel 222 can abut against the limiting block 110. The design of the abutment wheel 222 can reduce the friction between the limiting block 110 and the driving part 221.

[0047] See Figure 1 In one embodiment, to achieve the aforementioned lifting and lowering functions and adapt to the complex environment, a chain drive is preferably adopted in this application. The lifting device 300 includes a lifting motor 310, a chain 320, and sprockets 330. Two sprockets 330 are provided and rotatably mounted on the top and bottom of the frame 100 via drive shafts 340, respectively. The chain 320 is wound around the two sprockets 330. The lifting motor 310 is mounted on the bottom of the frame 100, and its output end is connected to the drive shaft 340 at the bottom. The lifting frame 210 is connected to the chain 320. These structures are common and will not be described in detail here. To improve driving capability, two chains 320 are provided, located on both sides of the frame 100. Similarly, two more sprockets 330 are provided, each mounted on a corresponding drive shaft 340. Thus, the lifting motor 310 can drive both chains 320 simultaneously. The control box 500 is electrically connected to the lifting motor 310, which facilitates the control of the forward and reverse rotation of the lifting motor 310 to achieve the raising or lowering of the lifting frame 210.

[0048] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A plant fiber raw material feeding device, characterized in that, include The frame has a limit block at its top; The sliding device includes a lifting frame, a swing arm, and a pull rod, wherein one end of the swing arm is slidably hinged to one end of the pull rod; A lifting device is mounted on the frame; the output end of the lifting device is connected to the lifting frame; the lifting device is capable of driving the lifting frame to rise and fall relative to the frame. The hopper is hinged to the lifting frame on both sides. The bottom of the hopper is provided with a discharge port. A gate mechanism is hinged to the discharge port. The gate mechanism can automatically block the discharge port. A control box is mounted on the frame and is electrically connected to the lifting device; The swing arm is hinged to the hopper at its middle section, and the other end of the pull rod is hinged to the outer wall of the hopper near the discharge port. The middle section of the pull rod is hinged to the input end of the gate mechanism. When the lifting frame gradually approaches the limiting block, one end of the swing arm first contacts the limiting block and generates relative displacement. The other end of the swing arm can gradually pull the bottom of the hopper outward through the pull rod and then drive the gate mechanism to gradually open the discharge port. The gate mechanism includes a sealing plate and a driving arm. One side of the sealing plate is hinged to the side of the discharge port near the swing arm. A reset mechanism is provided on the hopper. The reset mechanism can drive the sealing plate to block the discharge port. A push arm is provided on the side of the sealing plate that is hinged to the discharge port. One end of the driving arm is hinged to the push arm. A limiting groove is provided on the other end of the driving arm. The middle section of the pull rod is slidably hinged in the limiting groove.

2. The plant fiber raw material feeding device according to claim 1, characterized in that: The reset mechanism is a reset torsion spring. The sealing plate and the discharge port are hinged by a rotating shaft. The reset torsion spring is mounted on the rotating shaft, and the two ends of the reset torsion spring abut against the outer wall of the sealing plate and the hopper, respectively.

3. The plant fiber raw material feeding device according to claim 1, characterized in that: The hopper is provided with a locking block that cooperates with the movable side of the sealing plate. The locking block is provided with a limiting step on the side near the discharge port. The outward end of the locking block is deformable. The outward end of the locking block is provided with a slope on the side of the limiting step. When the movable side of the sealing plate can be locked on the limiting step, the sealing plate blocks the discharge port.

4. The plant fiber raw material feeding device according to claim 3, characterized in that: The locking block has a rotatable support wheel at one end, and the sealing plate also has a rotatable support wheel on its back.

5. A plant fiber raw material feeding device according to any one of claims 1-4, characterized in that: The lifting frame is provided with a limiting mechanism, and the outer wall of the hopper is provided with a limiting groove that cooperates with the limiting mechanism. When the lifting frame drives the limiting mechanism to abut against the limiting block, the limiting mechanism can be pulled out from the limiting groove.

6. The plant fiber raw material feeding device according to claim 5, characterized in that: The limiting mechanism includes a sliding rod, a wedge block, a limiting pin, and a return spring. The sliding rod is movably inserted into a limiting cylinder at the top of the lifting frame. The wedge block is located at the lower end of the sliding rod, and a clearance groove is provided on the wedge block along the length direction of the sliding rod. The limiting pin movably passes through the limiting cylinder, with one end able to be inserted into the limiting groove, and the other end of the limiting pin also movably protruding from the limiting cylinder. An end portion is provided on the upper part of the limiting pin. The return spring is fitted onto the limiting pin, with both ends abutting against the end portion and the side of the limiting cylinder away from the hopper, respectively. The upper end of the sliding rod is higher than the upper end of the swing arm. When the lifting frame drives the sliding rod to abut against the limiting block, the end portion can cooperate with the wedge-shaped surface of the wedge block to pull the limiting pin out of the limiting groove.

7. The plant fiber raw material feeding device according to claim 1, characterized in that: The frame is equipped with rails on both sides, and the lifting frame is mounted on both sides of the rails by two sets of rollers.

8. The plant fiber raw material feeding device according to claim 1, characterized in that: A driving part is provided on one end of the swing arm near the limiting block. The outward end of the driving part gradually tilts towards the side of the hopper away from the swing arm. An abutting wheel is rotatably provided on the end of the driving part. The outer circumference of the abutting wheel can abut against the limiting block.

9. The plant fiber raw material feeding device according to claim 1, characterized in that: The lifting device includes a lifting motor, a chain, and sprockets. Two sprockets are provided and are rotatably mounted on the top and bottom of the frame via a drive shaft, respectively. The chain is wound around the two sprockets. The lifting motor is mounted on the bottom of the frame and its output end is connected to the drive shaft at the bottom. The lifting frame is connected to the chain, and the control box is electrically connected to the lifting motor.

Images