Automatic feeding device for laser pipe cutting machine

Abstract

The utility model belongs to the technical field of laser pipe cutting, and discloses an automatic feeding device for a laser pipe cutting machine, which comprises a rack, a material storage mechanism, a material distribution mechanism, a feeding mechanism and a blanking mechanism are sequentially arranged on the rack along the pipe feeding direction, the material distribution mechanism comprises a material distribution component, a positioning piece and a material distribution cylinder for driving the material distribution component to lift, a material distribution area is formed between the material distribution assembly and the positioning piece and located at the discharging end of the material storage mechanism, the size of the material distribution area is matched with the outer diameter of a pipe, the feeding mechanism comprises an obliquely-arranged feeding plate and a pipe buffering assembly arranged at the tail end of the feeding plate, and the positioning piece is arranged above the starting end of the feeding plate. The discharging mechanism comprises a horizontally-arranged discharging plate, a material blocking part and a discharging air cylinder for driving the discharging plate to ascend and descend. According to the pipe distributing and feeding device, pipe piles can be accurately distributed and fed one by one, the situation that two or more pipes are fed at the same time is avoided, time and labor are saved, and working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser tube cutting, and in particular relates to an automatic feeding device for a laser tube cutting machine. Background Art

[0002] When laser tube cutting machines process tubes in batches, they need to be divided and loaded one by one. Currently, laser tube cutting machines usually include two loading methods: (1) manually taking out a tube from the stockpile position for loading. This operation method is not only time-consuming and labor-intensive, but also inefficient; (2) using an auxiliary loading device to assist in loading. The existing loading device often cannot ensure single loading when in use, and two or more tubes may be loaded at the same time, requiring manual intervention, which reduces work efficiency. Utility Model Content

[0003] In view of the deficiencies in the background technology, the utility model provides an automatic feeding device for a laser tube cutting machine, which can accurately divide and feed the tube piles one by one, avoid the situation where two or more tubes are fed at the same time, save time and labor, and improve work efficiency.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] An automatic feeding device for a laser tube cutting machine is characterized in that it comprises a frame, on which a storage mechanism, a dividing mechanism, a feeding mechanism and a blanking mechanism are arranged in sequence along the tube feeding direction, the dividing mechanism comprises a dividing assembly, a positioning member, and a dividing cylinder for driving the dividing assembly to rise and fall, a dividing area is formed between the dividing assembly and the positioning member, the dividing area is located at the discharge end of the storage mechanism, and its size matches the outer diameter of the tube, the feeding mechanism comprises an inclined feeding plate and a tube buffer assembly arranged at the end of the feeding plate, the positioning member is arranged above the starting end of the feeding plate, the blanking mechanism comprises a horizontally arranged blanking plate, a material stopper and a blanking cylinder for driving the blanking plate to rise and fall, and the material stopper is located at the upper end of the blanking plate on the side away from the tube buffer assembly.

[0006] Preferably, the material storage mechanism includes a material storage, a material supporting belt, a winding disk, a guide wheel, and a winding motor. The material storage is an inverted trapezoidal structure with an open upper end, and the upper part of the discharge end is rotatably connected to the guide wheel. One end of the material supporting belt is connected to the upper part of the material storage away from the discharge end, and the other end is wrapped around the winding disk after passing around the guide wheel. The winding disk is rotatably connected to the lower part of the frame and connected to the winding motor.

[0007] Preferably, the frame is provided with a slide rail parallel to the feeding plate, the material dividing cylinder is slidably connected to the slide rail, and the slide rail is provided with a fixing component for adjusting and fixing the position of the material dividing cylinder.

[0008] Preferably, the fixing assembly includes a fixing block, a fixing rod and two fixing nuts, one end of the fixing rod passes through a through hole on the fixing block and is hinged to the material distribution cylinder, and the two fixing nuts are respectively located on both sides of the fixing block and are threadedly connected to the fixing rod.

[0009] Preferably, the material dividing assembly comprises a lifting frame, a material dividing plate and a pipe in place sensing device, the material dividing plate is arranged on the lifting frame close to the storage mechanism side and is perpendicular to the feeding plate, and the pipe in place sensing device is arranged on the material dividing plate.

[0010] Preferably, the pipe arrival sensing device includes a sensing rod, a reset spring and a proximity switch, the sensing rod is arranged in a through groove in the middle of the dividing plate and a reset spring is arranged between the sensing rod and the lifting frame, and the proximity switch is arranged at a position on the lifting frame corresponding to the sensing rod.

[0011] Preferably, a slide groove parallel to the material dividing plate is provided on one side of the lifting frame, a material picking cylinder is slidably connected in the slide groove, and the output shaft of the material picking cylinder faces one side of the material storage mechanism and is connected to the material picking plate.

[0012] Preferably, the pipe buffer assembly includes a parallelogram buffer frame composed of two vertical rods and two horizontal rods hinged end to end in sequence, and the middle parts of the two vertical rods are rotatably connected to the frame through positioning shafts respectively, wherein a limit rod is provided on the upper side of the vertical rod away from the blanking mechanism, and a counterweight block is provided on the horizontal rod located below.

[0013] Preferably, the feeding mechanism also includes two pushing assemblies respectively located at the starting end and the end of the feeding plate, the pushing assembly includes a pushing cylinder, a mounting block is connected to the outer wall of the pushing cylinder, a swing arm is rotatably connected to the mounting block, one end of the swing arm is hinged to the output shaft of the pushing cylinder, and the other end is rotatably connected to a roller.

[0014] Preferably, a material receiving and transferring mechanism is provided on one side of the blanking mechanism, and the material receiving and transferring mechanism includes a transfer guide rail, a transfer cylinder, a material receiving trough and an auxiliary positioning cylinder. The material receiving trough is connected to the transfer cylinder and is slidably connected to the transfer guide rail. The auxiliary positioning cylinder is arranged on the frame and located below the end of the feeding plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model utilizes the dividing area between the dividing plate and the positioning piece that matches the size of the pipe to achieve accurate single feeding, thereby improving work efficiency. Moreover, by adjusting the position of the dividing cylinder, the size of the dividing area can be changed to meet the requirements of feeding materials of various specifications and sizes. It has a wide range of applications and strong practicality.

[0017] (2) The material separation mechanism of the utility model is also equipped with a material removal cylinder and a material removal plate, which can solve the problem of pipe stacking that occurs in extremely low probability situations, avoid the situation where two or more pipes are loaded at the same time, avoid the situation of intervening in processing, and save time and effort;

[0018] (3) The feed plate of the utility model is provided with a push assembly at the starting end and the end thereof, which can provide auxiliary functions for the feeding and dropping of the pipes, and suspend the counterweight block through the parallelogram buffer frame to eliminate the gravitational potential energy of the pipes in the process of rolling down from the feed plate, so that the pipes can smoothly enter the designated position range of the dropping plate, thereby ensuring the stability of the feeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objectives and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the feeding unit of the utility model;

[0023] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 5 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0025] Figure 6 This is a structural schematic diagram of the feeding unit of the utility model from another perspective;

[0026] Figure 7 For this utility model Figure 6 The enlarged structural diagram at C in the middle;

[0027] Figure 8 For this utility model Figure 6 The enlarged structural diagram at D in the middle;

[0028] Fig. 9 This is a schematic diagram of the cross-sectional structure of the pipe in-place sensing device of the utility model;

[0029] In the figure: 1, frame, 2, material storage mechanism, 201, material storage, 202, material support belt, 203, winding disk, 204, guide wheel, 205, winding motor, 206, driving shaft, 3, material distribution mechanism, 301, positioning member, 302, material distribution cylinder, 303, material distribution area, 304, slide rail, 305, fixing block, 306, fixing rod, 307, fixing nut, 308, lifting frame, 309, material distribution plate, 3010, induction rod, 3011, reset spring, 3012, proximity switch, 3013, through slot, 3014, slide, 3015, pick-up cylinder, 3016, pick-up plate, 4, feeding mechanism, 401, feeding plate, 402, vertical rod, 403, horizontal rod, 404, positioning shaft, 405, limit rod, 406, counterweight, 407, push cylinder, 408, mounting block, 409, swing arm, 4010, roller, 5, blanking mechanism, 501, blanking plate, 502, stopper, 503, blanking cylinder, 6, material receiving and transferring mechanism, 601, transfer guide rail, 602, receiving trough, 603, auxiliary positioning cylinder. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] In the description of the present invention, it should be understood that the terms "middle", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, an automatic feeding device for a laser tube cutting machine comprises a frame 1, on which at least two groups of feeding units are evenly spaced. Because the tube is long, the stability of the feeding process can be ensured. On the frame of each group of feeding units, a storage mechanism 2, a material distribution mechanism 3, a feeding mechanism 4 and a blanking mechanism 5 are arranged in sequence along the feeding direction of the tube. Figure 4 As shown, the material dividing mechanism includes a material dividing component, a positioning member 301, and a material dividing cylinder 302 for driving the material dividing component to rise and fall. A material dividing area 303 is formed between the material dividing component and the positioning member. The material dividing area is located at the discharge end of the storage mechanism, and its size matches the outer diameter of the pipe. The material dividing area can only accommodate a single pipe. The pipe enters the material dividing area from the discharge end of the storage mechanism. The storage mechanism recycles the excess pipe located outside the material dividing area. The feeding mechanism includes an inclined feeding plate 401 and a pipe buffer component arranged at the end of the feeding plate. The positioning member is arranged above the starting end of the feeding plate and is an integrated structure with the feeding plate. The material dividing cylinder drives the material dividing component to descend, eliminating the impact on the pipe located in the material dividing area. The pipe is limited in position. The pipe rolls downward from the inclined feeding plate under the action of gravity, passes through the pipe buffer assembly to reduce its gravitational potential energy, slows down its downward rolling speed, and enters the blanking mechanism. The blanking mechanism includes a horizontally arranged blanking plate 501, a material stopper 502 and a blanking cylinder 503 for driving the blanking plate to rise and fall. The material stopper is located at the upper end of the blanking plate on the side away from the pipe buffer assembly. After the pipe sliding down from the feeding plate contacts the material stopper, it stops on the blanking plate. The blanking plate is controlled to descend by the blanking cylinder to transfer the pipe to the laser pipe cutting machine or the auxiliary material receiving device located between the feeding device of this application and the laser pipe cutting machine, that is, the material receiving and transferring mechanism 6 in this embodiment.

[0034] like Figure 2 , Figure 6 and Figure 8 As shown, a material receiving and transferring mechanism 6 is provided on one side of the blanking mechanism, and the material receiving and transferring mechanism includes a transfer guide rail 601, a transfer cylinder (not shown in the figure), a material receiving trough 602 and an auxiliary positioning cylinder 603. The material receiving trough is connected to the transfer cylinder and is slidably connected to the transfer guide rail. The transfer guide rail is arranged along the feeding direction of the pipe. The transfer cylinder can adjust the position of the material receiving trough. Proximity switches are provided at both ends of the transfer guide rail to facilitate automation. One end corresponds to the position of the blanking plate, and the other end corresponds to the feeding position of the laser tube cutting machine. The auxiliary positioning cylinder is arranged on the frame and is located below the end of the feeding plate. When the blanking cylinder controls the blanking plate to descend, the auxiliary positioning cylinder can fine-tune the position of the pipe when necessary, so that it can accurately fall into the material receiving trough, thereby ensuring the stability of the feeding process.

[0035] like Figure 1 , Figure 3 , Figure 4 and Figure 6As shown, the storage mechanism includes a material storehouse 201, a material support belt 202, a winding disk 203, a guide wheel 204, and a winding motor 205. The material storehouse is an inverted trapezoidal structure with an open upper end, and its inner diameter is larger at the top and smaller at the bottom. The upper part of the discharge end is rotatably connected to a guide wheel. One end of the material support belt is connected to the upper part of the material storehouse away from the discharge end, and the other end is wound around the guide wheel and then wound on the winding disk. The winding disk is rotatably connected to the lower part of the frame and connected to the winding motor. The winding motor is a servo motor, which is convenient for accurately controlling the discharge of the material storehouse. The winding motor rotates to reel the material support belt, and the material support belt is gradually straightened, thereby driving the pipe pile at its upper end to move upward until it conflicts with the material distribution component and falls into the material distribution area. Then the winding motor reverses to unwind the material support belt, and the excess pipe is recycled to realize the discharge of the storage mechanism. Multiple groups of feeding units use a coiling motor to synchronously control the operation of multiple coiling disks, and adjacent coiling disks are connected by a drive shaft 206.

[0036] As shown in Figure 3, Figure 4 , Figure 6 and Figure 7 As shown, the frame is provided with a slide rail 304 parallel to the feeding plate, and the dividing cylinder is slidably connected to the slide rail. The slide rail is provided with a fixing component for adjusting the position of the dividing cylinder. The fixing component includes a fixing block 305, a fixing rod 306 and two fixing nuts 307. One end of the fixing rod passes through the through hole on the fixing block and is hinged to the dividing cylinder. The two fixing nuts are respectively located on both sides of the fixing block and are threadedly connected to the fixing rod. By adjusting the position of the dividing cylinder, the size of the dividing area (that is, the distance between the dividing assembly and the positioning piece) can be adjusted to match the size of the pipe, thereby ensuring single feeding. The dividing assembly includes a lifting frame 308, a dividing plate 309 and a pipe in place sensing device. The dividing plate is arranged on the lifting frame close to the storage mechanism and is perpendicular to the feeding plate. The pipe in place sensing device is arranged on the dividing plate. The pipe in place sensing device facilitates the automatic control of the dividing process of the dividing cylinder. Fig. 9 As shown, the pipe arrival sensing device includes a sensing rod 3010, a reset spring 3011 and a proximity switch 3012. The sensing rod is arranged in a through groove 3013 in the middle of the dividing plate and a reset spring is arranged between the sensing rod and the lifting frame. The proximity switch is arranged at a position on the lifting frame corresponding to the sensing rod. When the pipe contacts the sensing rod, the reset spring will be compressed to change the distance between the sensing rod and the proximity switch. The proximity switch is electrically connected to the control system of the feeding device of the present application, and the signal that the pipe has arrived at the dividing area is fed back to the control system to facilitate the implementation of the next step.

[0037] like Figure 4 and Figure 7As shown, in order to avoid the special situation that two pipes are stacked up and down in the material dividing area, a slide groove 3014 parallel to the material dividing plate is provided on one side of the lifting frame, and a pick-up cylinder 3015 is slidably connected in the slide groove. The output shaft of the pick-up cylinder faces one side of the storage mechanism and is connected to a pick-up plate 3016. The pick-up cylinder drives the pick-up plate to move, and the pipe located above can be pushed into the material storage. The height of the pick-up cylinder and the pick-up plate can be freely adjusted according to the actual size of the pipe, and can be fixed by bolts.

[0038] like Figure 5 As shown, the pipe buffer assembly includes a parallelogram buffer frame composed of two vertical rods 402 and two horizontal rods 403 which are hinged end to end in sequence. The middle parts of the two vertical rods are rotatably connected to the frame through positioning shafts 404. A limit rod 405 is provided on the upper side of the vertical rod away from the blanking mechanism. A counterweight block 406 is provided on the horizontal rod below. The height of the horizontal rod above is flush with the end of the feeding plate. When the pipe rolls onto the horizontal rod above, the parallelogram buffer frame will deform and swing along the two positioning shafts. The horizontal rod above moves toward the blanking mechanism, and at the same time drives the counterweight block on the horizontal rod below to move upward, thereby eliminating the gravitational potential energy of the pipe and accurately landing it on the blanking plate. The limit rod can impose certain restrictions on the deformation degree of the parallelogram buffer frame. The weight of the counterweight block can be freely adjusted according to the mass of a single pipe. It includes multiple counterweight units stacked in sequence. The multiple counterweight units are detachably connected to the buffer frame by bolts. The weight of the counterweight block can be adjusted by increasing or decreasing the number of counterweight units.

[0039] like Figure 4 , Figure 7 and Figure 8 As shown, the feeding mechanism also includes two pusher assemblies located at the starting end and the end of the feeding plate respectively. The two pusher assemblies have the same structure. The pusher assembly located at the starting end of the feeding plate is located between the frame and the lifting frame, and is used to provide an initial thrust to the pipe located in the material distribution area so that it can roll down along the feeding plate (mainly used for square pipes or other special-shaped pipes); and the pusher assembly located at the end of the feeding plate can prevent the pipe from rebounding due to contact with the blocking member. The pusher assembly pushes the rebounded pipe to accurately locate at the designated position of the blanking plate. Specifically, the pusher assembly includes a pusher cylinder 407, a mounting block 408 is connected to the outer wall of the pusher cylinder, a swing arm 409 is rotatably connected to the mounting block, one end of the swing arm is hinged to the output shaft of the pusher cylinder (specifically not shown in the figure), and the other end is rotatably connected to a roller 4010, and the swing of the swing arm is controlled by the lever principle, so that the roller pushes the pipe.

[0040] In this embodiment, each motor, cylinder and proximity switch is electrically connected to the control system (PLC control system) of the laser tube cutting machine to facilitate the automatic control of each loading step process. This technology is existing technology and will not be repeated here.

[0041] The working principle of the utility model is as follows:

[0042] like Figures 1 to 9 As shown, before loading, the pipes are piled up in the material storage 201 of multiple groups of loading units, and the ends of the pipes are aligned using the material head alignment screen. The winding motor 205 is started to reel the material support belt 202, and the material support belt 202 is gradually straightened to drive the pile to move upward until it contacts the material separation plate 309 and falls into the material separation area 303. The material removal cylinder 3015 drives the material removal plate 3016 to work, and pushes the upper pipes that may be stacked into the material storage 201, so that only a single pipe is retained in the material separation area 303. Then the material separation cylinder 302 drives the material separation plate 309 to descend, and the material pushing component located at the starting end of the feeding plate 401 works. The pipe provides initial power, so that the pipe rolls downward along the feed plate 401 under the action of its own gravity. When the pipe passes through the pipe buffer assembly, the gravitational potential energy is unloaded, and it touches the stopper 502 and rebounds to the blanking plate 501. At this time, the pushing assembly at the end of the feed plate works to ensure that the pipe is within the specified position range of the blanking plate 501. The blanking cylinder 503 drives the blanking plate 501 to descend, so that the pipe falls into the receiving trough 602, and the transfer cylinder controls the receiving trough to transfer the pipe to the loading position of the laser tube cutting machine.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. An automatic feeding device for a laser tube cutting machine, characterized in that: The invention comprises a frame, on which a storage mechanism, a dividing mechanism, a feeding mechanism and a blanking mechanism are arranged in sequence along the feeding direction of the pipe. The dividing mechanism comprises a dividing assembly, a positioning member, and a dividing cylinder for driving the dividing assembly to rise and fall. A dividing area is formed between the dividing assembly and the positioning member. The dividing area is located at the discharge end of the storage mechanism, and its size matches the outer diameter of the pipe. The feeding mechanism comprises an inclined feeding plate and a pipe buffer assembly arranged at the end of the feeding plate, the positioning member is arranged above the starting end of the feeding plate, and the blanking mechanism comprises a horizontally arranged blanking plate, a blocking member and a blanking cylinder for driving the blanking plate to rise and fall, and the blocking member is located at the upper end of the blanking plate on one side away from the pipe buffer assembly.

2. The automatic feeding device for a laser tube cutting machine according to claim 1, characterized in that: The material storage mechanism includes a material storage, a material supporting belt, a winding disk, a guide wheel, and a winding motor. The material storage is an inverted trapezoidal structure with an open upper end, and the upper part of its discharge end is rotatably connected to the guide wheel. One end of the material supporting belt is connected to the upper part of the material storage away from the discharge end, and the other end is wrapped around the winding disk after passing around the guide wheel. The winding disk is rotatably connected to the lower part of the frame and connected to the winding motor.

3. The automatic feeding device for a laser tube cutting machine according to claim 1, characterized in that: The frame is provided with a slide rail parallel to the feeding plate, the material distribution cylinder is slidably connected to the slide rail, and the slide rail is provided with a fixing component for adjusting and fixing the position of the material distribution cylinder.

4. The automatic feeding device for a laser tube cutting machine according to claim 3, characterized in that: The fixing assembly includes a fixing block, a fixing rod and two fixing nuts. One end of the fixing rod passes through a through hole on the fixing block and is hinged to the material distribution cylinder. The two fixing nuts are respectively located on both sides of the fixing block and are threadedly connected to the fixing rod.

5. The automatic feeding device for a laser tube cutting machine according to claim 1, characterized in that: The material dividing assembly comprises a lifting frame, a material dividing plate and a pipe in place sensing device. The material dividing plate is arranged on the lifting frame near the material storage mechanism and is perpendicular to the feeding plate. The pipe in place sensing device is arranged on the material dividing plate.

6. The automatic feeding device for a laser tube cutting machine according to claim 5, characterized in that: The pipe in-place sensing device comprises a sensing rod, a reset spring and a proximity switch. The sensing rod is arranged in a through groove in the middle of the material dividing plate and a reset spring is arranged between the sensing rod and the lifting frame. The proximity switch is arranged at a position on the lifting frame corresponding to the sensing rod.

7. The automatic feeding device for a laser tube cutting machine according to claim 5, characterized in that: A slide groove parallel to the material dividing plate is provided on one side of the lifting frame, a material removing cylinder is slidably connected in the slide groove, and an output shaft of the material removing cylinder faces one side of the material storage mechanism and is connected to the material removing plate.

8. The automatic feeding device for a laser tube cutting machine according to claim 1, characterized in that: The pipe buffer assembly includes a parallelogram buffer frame composed of two vertical rods and two horizontal rods hinged end to end in sequence. The middle parts of the two vertical rods are rotatably connected to the frame through positioning shafts respectively. A limit rod is provided on one side of the upper part of the vertical rod away from the blanking mechanism, and a counterweight block is provided on the horizontal rod located below.

9. The automatic feeding device for a laser tube cutting machine according to claim 1, characterized in that: The feeding mechanism also includes two pushing assemblies respectively located at the starting end and the end of the feeding plate, the pushing assembly includes a pushing cylinder, a mounting block is connected to the outer wall of the pushing cylinder, a swing arm is rotatably connected to the mounting block, one end of the swing arm is hinged to the output shaft of the pushing cylinder, and the other end is rotatably connected to a roller.

10. The automatic feeding device for a laser tube cutting machine according to claim 1, characterized in that: A material receiving and transferring mechanism is provided on one side of the blanking mechanism, and the material receiving and transferring mechanism includes a transfer guide rail, a transfer cylinder, a material receiving trough and an auxiliary positioning cylinder. The material receiving trough is connected to the transfer cylinder and is slidably connected to the transfer guide rail. The auxiliary positioning cylinder is arranged on the frame and located below the end of the feeding plate.

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