Automatic feeding device

Abstract

The utility model relates to the field of automatic feeding, in particular to an automatic feeding device which comprises a square cylinder and a guide plate. The square cylinder comprises a side cylinder body, an upper cylinder body and a lower cylinder body; the guide plate is arranged in an inner cavity of the square barrel, the guide plate is in a movable state relative to the side barrel body, the moving path of the guide plate is parallel to the vertical direction, and a preset angle is formed between the guide plate and the vertical direction; a feeding hole is formed in the upper cylinder body, a plurality of discharging holes are formed in the side cylinder body, and the plurality of discharging holes are arranged at intervals from top to bottom in the vertical direction; any discharge port is provided with a discharge barrel, any discharge barrel is located on the outer side of the side barrel body, and any discharge barrel is fixedly or detachably connected with the side barrel body. According to the utility model, the phenomenon that dust is raised at the position between the feed port and the feed port of the storage bin is avoided.

Description

Technical Field

[0001] This utility model relates to the field of automatic feeding, specifically an automatic feeding device. Background Technology

[0002] In the prior art, after carrier-free masterbatch (an additive, one of which is used to be added to resin particles) leaves the production line and before being filled into packaging bags, the masterbatch needs to be cooled down to avoid the masterbatch temperature from getting too high.

[0003] During the process of transferring the masterbatch from the production line to the cooling device, the masterbatch contains dust, and the composition of the dust is the same as that of the masterbatch. Therefore, the dust is prone to cause dust pollution when it is introduced into the cooling device.

[0004] In another patent application filed by the inventor in this case, a storage silo with multiple feed inlets was proposed. During the process of feeding masterbatch into each feed inlet of the storage silo, the aforementioned dust phenomenon can be caused multiple times. In essence, when the existing automatic feeding device, such as a conveyor belt or feeder, feeds the masterbatch into the storage silo with multiple feed inlets proposed by the inventor, dust phenomenon inevitably occurs because the existing automatic feeding device usually adopts an open design and does not have a limiting structure to restrict dust phenomenon.

[0005] Therefore, when feeding materials into a storage silo with multiple inlets, how to avoid dust generation at the point from the feeding device to the silo inlet has become a technical problem to be solved. Utility Model Content

[0006] To address the technical problem of preventing dust generation at the point of contact between the feeding device and the silo's inlet when feeding materials into a storage silo with multiple inlets, this invention provides an automatic feeding device.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An automatic feeding device, including a square tube and a guide plate;

[0009] The square tube includes a side tube, an upper tube, and a lower tube. The side tube is constructed as a cylindrical structure with an upper opening and a lower opening. The upper tube covers the upper opening, and the lower tube covers the lower opening.

[0010] The guide plate is arranged in the inner cavity of the square cylinder, the guide plate is movable relative to the side cylinder, the movable path of the guide plate is parallel to the vertical direction, the guide plate is at a preset angle with the vertical direction, along the vertical direction, the guide plate has a highest position edge and a lowest position edge;

[0011] The upper cylinder is provided with a feeding port, and the side cylinder is provided with a plurality of discharging ports, the plurality of discharging ports are arranged in the vertical direction and spaced from each other from top to bottom, the plurality of discharging ports are located at a first side of the side cylinder, a second side opposite to the first side, the highest position edge is located at the second side, and the lowest position edge is located at the first side;

[0012] Any of the discharging ports is respectively provided with a discharging cylinder, any of the discharging cylinders is located outside the side cylinder, and any of the discharging cylinders is fixedly or detachably connected with the side cylinder.

[0013] Further, a hydraulic lifting mechanism is further included, the hydraulic lifting mechanism is limited in the inner cavity, the hydraulic lifting mechanism is located between the guide plate and the lower cylinder, the hydraulic lifting mechanism has a contraction state and a relaxation state, when the hydraulic lifting mechanism is transformed between the contraction state and the relaxation state, the guide plate is driven by the hydraulic lifting mechanism to make a lifting action.

[0014] Further, a hydraulic pipe and a hydraulic pump are further included;

[0015] The hydraulic lifting mechanism includes a plurality of movable plates and a plurality of hydraulic rods, the plurality of movable plates are arranged to be parallel to each other and spaced in the vertical direction, and four hydraulic rods are arranged between any two adjacent movable plates.

[0016] The four hydraulic rods between any two adjacent movable plates are defined as a first hydraulic rod, a second hydraulic rod, a third hydraulic rod and a fourth hydraulic rod, and the first hydraulic rod, the second hydraulic rod, the third hydraulic rod and the fourth hydraulic rod each have a piston rod and a cylinder body.

[0017] Between any two adjacent movable plates, the movable plate at the upper part of the four hydraulic rods is an upper movable plate, and the movable plate at the lower part of the four hydraulic rods is a lower movable plate, the piston rod of the first hydraulic rod, the piston rod of the second hydraulic rod, the piston rod of the third hydraulic rod and the piston rod of the fourth hydraulic rod are respectively hinged to the upper movable plate, and the cylinder body of the first hydraulic rod, the cylinder body of the second hydraulic rod, the cylinder body of the third hydraulic rod and the cylinder body of the fourth hydraulic rod are respectively hinged to the lower movable plate.

[0018] The oil outlet end of the hydraulic pipe is provided with a plurality of oil outlet branch pipes, any one of the hydraulic rods is configured with one of the oil outlet branch pipes, any one of the hydraulic rods is fixedly connected with the oil outlet branch pipe, the hydraulic pipe is arranged in the first hole of the side cylinder, the oil inlet end of the hydraulic pipe is fixedly connected with the hydraulic pump, and the oil inlet end and the hydraulic pump are located outside the side cylinder.

[0019] Further, a position sensor and a controller are further included, and the position sensor is electrically connected with the controller.

[0020] The position sensor is arranged on the guide plate, and the position sensor is located on the side of the guide plate facing the lower cylinder.

[0021] Further, the probe is specifically a Hall element.

[0022] A plurality of magnets are arranged on the side cylinder, and the plurality of magnets are respectively located on the second side.

[0023] The above technical scheme has the following advantages or beneficial effects:

[0024] The automatic feeding device provided by the utility model has the advantages that the dust generated in the process of the master batch from the feeding port to the inner cavity of the square cylinder is limited in the inner cavity of the square cylinder, the guide plate can be lifted to the lowest part of any one of the discharge ports, the master batch is sent from the inner cavity to different discharge ports, the discharge port is provided with a discharge cylinder, the discharge cylinder guides the master batch into the storage bin, and the dust generated in the process of the master batch from the discharge port to the feeding port of the storage bin is limited in the discharge cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a structural schematic view of an automatic feeding device according to an embodiment of the utility model;

[0026] Figure 2 FIG. 2 is another angle of the structural schematic view of the automatic feeding device according to the embodiment of the utility model; Figure 1

[0027] Figure 3 FIG. 3 is a structural schematic view of a side cylinder and a discharge port according to the embodiment of the utility model;

[0028] Figure 4 ​The utility model provides a square cylinder, guide plate and hydraulic lifting mechanism's structure schematic view for embodiment 1 of the utility model provides a guide plate, position sensor and hydraulic lifting mechanism's structure schematic view;

[0029] Figure 5 The utility model provides a guide plate, position sensor and hydraulic lifting mechanism's structure schematic view for embodiment 1 of the utility model provides a guide plate, position sensor and hydraulic lifting mechanism's structure schematic view;

[0030] Figure 6 The utility model provides a Hall element, controller and hydraulic lifting mechanism's electrical connection drawing for embodiment 1 of the utility model provides a Hall element, controller and hydraulic lifting mechanism's electrical connection drawing.

[0031] Mark in drawing: square cylinder 1, side part cylinder body 11, upper part cylinder body 12, lower part cylinder body 13, guide plate 2, highest position edge 21, lowest position edge 22, discharge port 3, discharge cylinder 31, feed port 4, movable plate 5, hydraulic rod 6, piston rod 61, cylinder body 62, position sensor 7, controller 8, Hall element 9, hydraulic lifting mechanism 10. DETAILED DESCRIPTION

[0032] The utility model provides a clear, complete description of the contents of the utility model below in conjunction with the drawings, obviously, the described embodiment is the utility model part embodiment, instead of all embodiments. In the embodiment in the utility model, other embodiments obtained by the person skilled in the art without making creative labor all belong to the scope of the utility model protection.

[0033] Embodiment 1

[0034] In the embodiment, refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , provide automatic feeding device, including square cylinder 1 and guide plate 2;

[0035] Square cylinder 1 includes side part cylinder body 11, upper part cylinder body 12 and lower part cylinder body 13, and the side part cylinder body 11 is structured as the cylindrical structure with upper mouth part and lower mouth part, the upper part cylinder body 12 covers in the upper mouth part, and the lower part cylinder body 13 covers in the lower mouth part;

[0036] Guide plate 2 is arranged in the inner chamber of square cylinder 1, and the guide plate 2 is movable relative to the side part cylinder body 11, and the movable path of the guide plate 2 is parallel to the vertical direction, and the guide plate 2 is at the preset angle with the vertical direction, along the vertical direction, the guide plate 2 has highest position edge 21 and lowest position edge 22;

[0037] The upper cylinder 12 is provided with a feeding port 4, and the side cylinder 11 is provided with a plurality of discharge ports 3, which are arranged in the vertical direction from top to bottom and are spaced apart from each other. The position of the plurality of discharge ports 3 on the side cylinder 11 is a first side, and the position opposite to the first side is a second side. The highest position edge 21 is located on the second side, and the lowest position edge 22 is located on the first side.

[0038] Any discharge port 3 is respectively provided with a discharge cylinder 31, and any discharge cylinder 31 is located outside the side cylinder 11 and is fixedly or detachably connected with the side cylinder 11.

[0039] The square cylinder 1 is configured as a closable and sealed container structure through the side cylinder 11, the upper cylinder 12 and the lower cylinder 13. The inner cavity of the square cylinder 1 is isolated from the atmosphere outside the square cylinder 1.

[0040] In this embodiment, the cross section of the square cylinder 1 is rectangular, and the rectangular guide plate 2 is easier to process. No matter how slight the shaking of the guide plate 2 is during the vertical movement of the guide plate 2, the long side part of the rectangular guide plate 2 is always in close contact with the square cylinder 1, so that the master batch does not fall from the long side part of the guide plate 2.

[0041] The lowest position edge 22 of the guide plate 2 is adjusted to the lowest part of a specified discharge port 3, so that the cylinder cavity of the discharge cylinder 31 of the discharge port 3 is connected with the inner cavity of the square cylinder 1. During the process of putting the master batch onto the guide plate 2 in the square cylinder 1, the master batch containing dust from outside enters the inner cavity through the feeding port 4, and the master batch containing dust falls on the guide plate 2 under the action of gravity and is affected by the reaction force of the guide plate 2. Some master batch and dust are in a splashing state, thereby forming a dust raising phenomenon. However, since the square cylinder 1 is configured as a sealed container structure, the dust raising phenomenon is limited in the inner cavity of the square cylinder 1, so that the dust in the square cylinder 1 does not cause the dust raising phenomenon outside the square cylinder 1.

[0042] It should be understood that in this embodiment, the device for putting the master batch into the feeding port of the automatic feeding device of this embodiment can be an automatic feeding device in the prior art, such as a conveyor belt or a feeding machine. Taking the conveyor belt as an example, when the conveyor belt puts the master batch into the feeding port 4 of the automatic feeding device of this embodiment, in order to avoid the dust raising phenomenon caused by the master batch containing dust splashing into the atmosphere under the action of natural wind between the conveyor belt and the feeding port 4 during the process of the master batch entering the feeding port 4, this dust raising phenomenon is not the technical problem to be solved by this embodiment. Even if this technical problem exists, a sealing device can be arranged at the position between the conveyor belt and the feeding port 4, and the conveyor belt itself is provided with an isolation device to avoid the dust splashing into the atmosphere.

[0043] After the master granules are put into the guide plate 2, because the guide plate 2 has a preset angle and the lowest position edge 22 of the guide plate 2 is adjusted to the lowest part of the discharge port 3, the master granules will roll from the guide plate 2 to the discharge port 3 and then to the inlet of the storage bin in the direction from the highest position edge 21 to the lowest position edge 22 of the guide plate 2 under the action of gravity. The plurality of discharge ports 3 of the automatic feeding device correspond to the plurality of inlets of the storage bin one by one, and one end of the discharge cylinder 31 is fixedly or detachably connected with the side cylinder 11, and the other end of the discharge port 3 can also be fixedly or detachably connected with the storage bin, so that the dust generated in the process of the master granules containing dust from the discharge port 3 to the storage bin is limited in the discharge cylinder 31 and cannot splash into the atmosphere.

[0044] In summary, the automatic feeding device of the embodiment can avoid the phenomenon of dust formation of the master granules at the position from the inlet 4 to the inlet of the storage bin.

[0045] Further, on the basis of the foregoing scheme, how to make the guide plate 2 movable relative to the side cylinder 11 is preferably achieved by the following technical scheme.

[0046] Referring to Figure 4 and Figure 6 , the automatic feeding device in the embodiment further comprises a hydraulic lifting mechanism 10, the hydraulic lifting mechanism 10 is limited in the inner cavity, the hydraulic lifting mechanism 10 is located between the guide plate 2 and the lower cylinder 13, and the hydraulic lifting mechanism 10 has a contraction state and a relaxation state. When the hydraulic lifting mechanism 10 changes between the contraction state and the relaxation state, the guide plate 2 is driven by the hydraulic lifting mechanism 10 to make a lifting action.

[0047] It should be understood that, for the realization of the vertical movability of the guide plate 2, a pneumatic cylinder can be used as a power source, or the hydraulic lifting mechanism 10 can be used as a power source. Compared with the pneumatic lifting, the hydraulic lifting has the advantages of good lifting stability, strong carrying capacity, and accurate adjustment of lifting height, so the hydraulic lifting mechanism 10 is adopted in the embodiment to realize the movability of the guide plate 2 relative to the side cylinder 11.

[0048] Further, on the basis of the foregoing scheme, how the hydraulic lifting mechanism 10 realizes the lifting of the guide plate 2 is preferably achieved by the following technical scheme.

[0049] Referring to Figure 4 , Figure 5 and Figure 6 , the automatic feeding device in the embodiment further comprises a hydraulic pipe and a hydraulic pump;

[0050] The hydraulic lifting mechanism 10 comprises a plurality of movable plates 5 and a plurality of hydraulic rods 6, the plurality of movable plates 5 are arranged in parallel to each other and form a spacing in the vertical direction, and four hydraulic rods 6 are arranged between any two adjacent movable plates 5 respectively;

[0051] The four hydraulic rods 6 between any two adjacent movable plates 5 are defined as a first hydraulic rod, a second hydraulic rod, a third hydraulic rod and a fourth hydraulic rod, and each of the first hydraulic rod, the second hydraulic rod, the third hydraulic rod and the fourth hydraulic rod has a piston rod 61 and a cylinder body 62;

[0052] Between any two adjacent movable plates 5, the movable plate 5 at the upper part of the four hydraulic rods 6 is an upper movable plate, the movable plate 5 at the lower part of the four hydraulic rods 6 is a lower movable plate, the piston rod 61 of the first hydraulic rod, the piston rod 61 of the second hydraulic rod, the piston rod 61 of the third hydraulic rod and the piston rod 61 of the fourth hydraulic rod are respectively hinged to the upper movable plate, and the cylinder body 62 of the first hydraulic rod, the cylinder body 62 of the second hydraulic rod, the cylinder body 62 of the third hydraulic rod and the cylinder body 62 of the fourth hydraulic rod are respectively hinged to the lower movable plate;

[0053] The oil outlet end of the hydraulic pipe is provided with a plurality of oil outlet branch pipes, any hydraulic rod 6 is provided with an oil outlet branch pipe, and any hydraulic rod 6 is fixedly connected with the oil outlet branch pipe. The hydraulic pipe is arranged in the first hole of the side cylinder 11, the oil inlet end of the hydraulic pipe is fixedly connected with the hydraulic pump, and the oil inlet end and the hydraulic pump are located outside the side cylinder 11.

[0054] In the embodiment, the number of movable plates 5 and the number of hydraulic rods 6 of the hydraulic lifting mechanism 10 can be adjusted according to actual needs, so as to adjust the maximum height and the minimum height that the hydraulic lifting mechanism 10 can reach. The existing hydraulic lifting mechanism 10 usually adopts a scissor type hydraulic lifting mechanism, and the lifting principle is that the hydraulic rod drives the scissor support to slide in the track of the upper movable plate and the lower movable plate. During the sliding process of the scissor support in the track, the scissor support is horizontally displaced relative to the upper movable plate, the supporting point position of the scissor support on the upper movable plate is changed, and the center of the movable plate part supported by the scissor support is offset, so that the problem of poor lifting stability is easily caused. In the embodiment, the piston rod 61 of the four hydraulic rods 6 is hinged to the upper movable plate, and the cylinder body 62 of the four hydraulic rods 6 is hinged to the lower movable plate, so that the hydraulic rod 6 can only be displaced in the vertical direction and cannot be displaced in the horizontal direction, so that the supporting point position of the piston rod 61 on the upper movable plate will not change, thereby avoiding the phenomenon that the center of the upper movable plate supported by the hydraulic rod 6 is offset during lifting.

[0055] Further, in the foregoing scheme, how to judge that the lowest position edge 22 of the guide plate 2 has reached the designated lowest position of the discharge port 3, preferably the following technical solutions are adopted.

[0056] Referring to Figure 5 and Figure 6 The automatic feeding device in the embodiment further comprises a position sensor 7 and a controller 8, and the position sensor 7 is electrically connected to the controller 8.

[0057] The position sensor 7 is arranged on the guide plate 2, and the position sensor 7 is located on a side of the guide plate 2 facing the lower cylinder 13. The position sensor 7 has a probe, and the probe points to the side cylinder 11.

[0058] During the lifting process of the hydraulic lifting mechanism 10, the position sensor 7 is started, the displacement and position of the guide plate 2 relative to the side cylinder 11 are measured by the probe of the position sensor 7, and a position electric signal is obtained. The position sensor 7 transmits the position electric signal to the controller 8, the controller 8 converts the position electric signal into position data, and compares the position data with the designated lowest position of the discharge port 3. If the position data is the same as the designated lowest position of the discharge port 3, the controller 8 obtains the result that the lowest position edge 22 of the current guide plate 2 has reached the lowest position of the designated discharge port 3. Otherwise, if the position data is not the same as the designated lowest position of the discharge port 3, the controller 8 obtains the result that the lowest position edge 22 of the current guide plate 2 has not reached the lowest position of the designated discharge port 3.

[0059] Further, in the foregoing scheme, how the position sensor obtains the position of the guide plate 2 relative to the side cylinder 11, preferably the following technical solutions are adopted.

[0060] Referring to Figure 6 The probe of the automatic feeding device in the embodiment is specifically a Hall element 9.

[0061] The side cylinder 11 is provided with a plurality of magnets, and the plurality of magnets are respectively located on the second side. Any one of the magnets is matched with one of the discharge ports 3.

[0062] The use process of the utility model is as follows:

[0063] The plurality of discharge ports 3 of the utility model correspond one-to-one to the plurality of inlet ports of the storage bin, and one end of the discharge cylinder 31 is fixedly or detachably connected to the side cylinder 11. The other end of the discharge port 3 can also be fixedly or detachably connected to the storage bin.

[0064] Firstly, the controller 8 is given a specified position signal of the lowest part of the discharge port 3, the controller 8 transmits the signal to the hydraulic lifting mechanism 10 after conversion, the hydraulic lifting mechanism 10 performs mechanical movement of lifting or lowering after receiving the signal, the hydraulic lifting mechanism 10 drives the guide plate 2 to lift in the process of movement, the position sensor 7 on the guide plate 2 detects the position of the guide plate 2 relative to the square cylinder 1 and transmits the position signal to the controller 8, when the controller 8 judges that the current position data of the guide plate 2 is the same as the specified position of the lowest part of the discharge port 3, the hydraulic lifting mechanism 10 stops the lifting movement, and the master batch starts to feed.

[0065] Then, the master batch is thrown into the inner cavity of the square cylinder 1 through the feeding port 4 under the action of gravity, and falls on the guide plate 2; since the lowest position edge 22 of the guide plate 2 is located at the specified lowest part of the discharge port 3 at this time, the master batch falls from the guide plate 2 to the feeding port of the storage bin through the discharge port 3 in the direction of the lowest position edge 22 from the highest position edge 21 of the guide plate 2 under the action of gravity.

[0066] Finally, when the discharge of the discharge port 3 is completed, another specified position signal of the lowest part of the discharge port 3 is given to the controller 8 again, so that the discharge of another specified discharge port 3 is realized, and the above process is repeatedly performed.

[0067] The automatic feeding device provided by the utility model, by setting the square cylinder 1 with the side part cylinder body 11, the upper part cylinder body 12 and the lower part cylinder body 13, the dust generated in the process of the master batch from the feeding port 4 to the inner cavity of the square cylinder 1 is limited in the inner cavity of the square cylinder 1, by setting the liftable guide plate 2, and the lowest position edge 22 of the guide plate 2 can be lifted to the lowest part of any discharge port 3, the master batch is sent from the inner cavity to different discharge ports 3, and the discharge port 3 is provided with the discharge cylinder 31, the discharge cylinder 31 guides the master batch into the storage bin, so that the dust generated in the process of the master batch from the discharge port 3 to the feeding port of the storage bin is limited in the discharge cylinder 31. In conclusion, the automatic feeding device provided by the utility model avoids the dust phenomenon formed between the position from the feeding port 4 to the feeding port of the storage bin.

[0068] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct or indirect application in other related technical fields by using the utility model specification and drawing contents are also included in the patent protection range of the utility model.

Claims

1. An automatic feeding device, characterized by, The square cylinder includes a side cylinder body, an upper cylinder body and a lower cylinder body, the side cylinder body is built as a cylindrical structure with an upper opening and a lower opening, the upper cylinder body covers the upper opening, and the lower cylinder body covers the lower opening. The guide plate is arranged in the inner cavity of the square cylinder, the guide plate is movable relative to the side cylinder body, the movement path of the guide plate is parallel to the vertical direction, the guide plate is at a preset angle with the vertical direction, along the vertical direction, the guide plate has a highest position edge and a lowest position edge. The upper cylinder body is provided with an inlet, and the side cylinder body is provided with a plurality of outlets, the plurality of outlets are arranged in the vertical direction from top to bottom and spaced from each other, the plurality of outlets are located at a first side of the side cylinder body, a second side opposite to the first side, the highest position edge is located at the second side, and the lowest position edge is located at the first side. Any of the outlets is respectively provided with an outlet cylinder, any of the outlet cylinders is located outside the side cylinder body, and any of the outlet cylinders is fixedly or detachably connected with the side cylinder body. Further comprising a hydraulic lifting mechanism, the hydraulic lifting mechanism is limited in the inner cavity, the hydraulic lifting mechanism is located between the guide plate and the lower cylinder body, the hydraulic lifting mechanism has a contraction state and a relaxation state, when the hydraulic lifting mechanism changes between the contraction state and the relaxation state, the guide plate is driven by the hydraulic lifting mechanism to make lifting action.

2. The automatic feeding device according to claim 1, characterized in that, Further comprising a hydraulic pipe and a hydraulic pump; 3. The automatic feeding device according to claim 2, wherein The hydraulic lifting mechanism includes a plurality of movable plates and a plurality of hydraulic rods, the plurality of movable plates are arranged in parallel with each other and spaced in the vertical direction, four hydraulic rods are arranged between any two adjacent movable plates. The four hydraulic rods between any two adjacent movable plates are defined as a first hydraulic rod, a second hydraulic rod, a third hydraulic rod and a fourth hydraulic rod, the first hydraulic rod, the second hydraulic rod, the third hydraulic rod and the fourth hydraulic rod each have a piston rod and a cylinder body. The movable plate at the upper part of the four hydraulic rods between any two adjacent movable plates is an upper movable plate, and the movable plate at the lower part of the four hydraulic rods is a lower movable plate, the piston rod of the first hydraulic rod, the piston rod of the second hydraulic rod, the piston rod of the third hydraulic rod and the piston rod of the fourth hydraulic rod are respectively hinged to the upper movable plate, and the cylinder body of the first hydraulic rod, the cylinder body of the second hydraulic rod, the cylinder body of the third hydraulic rod and the cylinder body of the fourth hydraulic rod are respectively hinged to the lower movable plate. ​ The oil outlet end of the hydraulic pipe is provided with a plurality of oil outlet branch pipes, any one of the hydraulic rods is configured with one of the oil outlet branch pipes, any one of the hydraulic rods is fixedly connected with the oil outlet branch pipe, the hydraulic pipe is arranged in the first hole of the side cylinder, the oil inlet end of the hydraulic pipe is fixedly connected with the hydraulic pump, and the oil inlet end and the hydraulic pump are located outside the side cylinder.

4. The automatic feeding device according to claim 1, wherein A position sensor and a controller are further included, and the position sensor is electrically connected with the controller. The position sensor is arranged on the guide plate, and is located on the side of the guide plate facing the lower cylinder. The position sensor has a probe, and the probe points to the side cylinder.

5. The automatic feeding device according to claim 4, wherein The probe is specifically a Hall element. A plurality of magnets are arranged on the side cylinder, and the plurality of magnets are respectively located on the second side. Any one of the magnets is matched with any one of the discharge ports.

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