Fixed-point feeding device of material treatment bin

Abstract

The utility model discloses a fixed-point feeding device of a material processing bin, which solves the problems of high labor intensity and low operation efficiency of feeding of the material processing bin in the prior art, and adopts the technical scheme that the fixed-point feeding device of the material processing bin comprises a rack, a lifting position is formed on the rack, a lifting mechanism is arranged on the rack, and the lifting mechanism is arranged on the rack. The lifting frame is in transmission connection with the lifting mechanism, the lifting frame is driven by the lifting mechanism to ascend and descend at a lifting position, and the lifting mechanism is characterized in that a plurality of placing positions for placing the clamping rods are formed on the lifting frame, and the clamping rods are used for clamping and hanging materials; the lower end of the machine frame is provided with a walking structure for the machine frame to walk. A power structure is arranged on the machine frame, a positioning bolt is connected to the power structure, and the power structure is used for promoting the positioning bolt to be matched with a concave surface structure on the ground in an inserted mode so that the machine frame can be positioned.

Description

Technical Field

[0001] The utility model relates to a feeding device, in particular to a device for feeding materials into a material processing bin. Background Art

[0002] In some industries, it is necessary to apply a material processing bin to centrally process materials. For example, in the tobacco preparation industry, it is necessary to build a flue-curing barn to bake the green tobacco leaves collected, so that the tobacco leaves are dehydrated and turn yellow for further processing into tobacco shreds. Under the existing production technical conditions, the tobacco leaves are usually processed manually. That is, the green tobacco leaves are manually picked, then the tobacco leaves are woven onto a rod through a rope, and finally the rod with the tobacco leaves clamped is hung on the shelf in the flue-curing barn. In order to improve the space utilization rate inside the flue-curing barn, multiple layers of shelves are usually arranged in the flue-curing barn, and each layer of shelf holds a row of hanging tobacco leaves. Under the existing conditions, this kind of feeding of tobacco leaves is all carried out by manual operation, with high labor intensity and relatively low work efficiency. Moreover, at present, with the aggravation of the aging of the rural population, there are fewer and fewer young people engaged in heavy physical labor. Therefore, it is becoming more and more urgent to develop a mechanized operation device. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model: Provide a fixed-point feeding device for a material processing bin, which can well adapt to the fixed-point feeding of the processing bin and has a short operation preparation time.

[0004] To solve the above technical problem, the technical solution of the utility model: A fixed-point feeding device for a material processing bin, including a frame, a lifting position is formed on the frame, a lifting mechanism is provided on the frame, the lifting frame is in transmission connection with the lifting mechanism, and the lifting frame can be lifted at the lifting position under the drive of the lifting mechanism. It is characterized in that a plurality of placing positions for placing the clamping rods are formed on the lifting frame, and the clamping rods are used for clamping and hanging materials; a traveling structure for the frame to travel is provided at the lower end of the frame; a power structure is provided on the frame, a positioning bolt is connected to the power structure, and the power structure is used to promote the positioning bolt to be inserted and matched with the concave structure on the ground to realize the positioning of the frame.

[0005] The concave structure on the ground needs to be pre-embedded on the ground. The location of the pre-embedded concave structure needs to be calculated according to the dimensions of the silo, the frame, and the lifting frame. Through the plug-in fit of the positioning bolts and the concave structure, the initial positioning of the loading device is realized. After the positioning is completed, the position of the loading device will be fixed. When loading, the clamping rod with the material clamped is on the lifting frame. It is necessary to realize the docking of the lifting frame with the frame in the processing bin through the lifting of the lifting frame. Then, the clamping rod can be moved into the processing bin by the power mechanism of the lifting frame itself, or the clamping rod can be pushed forward manually, or the clamping rod can be automatically slid into the processing bin by setting the lifting frame obliquely.

[0006] Further, a hollow sleeve is connected to the power structure, and the positioning bolt is coaxially and clearance-fitted in the sleeve. Through the setting of the sleeve, the positioning of the positioning bolt is realized, so that the movement stability of the positioning bolt is good, and it is convenient for the positioning bolt to provide a stable positioning effect for the loading device.

[0007] Further, a lining sleeve is connected to the inner side of the outer end of the sleeve, and the positioning bolt is clearance-fitted in the lining sleeve. The setting of the lining sleeve can provide protection for the sleeve, and some wear-resistant materials can be selected to make the lining sleeve, so that the service life of the positioning mechanism is long.

[0008] Further, a loading station is formed at the front end of the frame, and the clamping rod is used to clamp the material at the loading station; a swing frame is movably arranged on the frame, and a movable clamping structure is arranged at the lower end of the swing frame. The clamping structure is used to clamp the clamping rod, and the swing frame is used to convey the clamping rod with the material clamped at the loading station to the lifting position and enter the shelving position. Setting the loading station on the loading device can further broaden the function of the loading device, improve the compactness of the structure, and facilitate the actual application in production.

[0009] Further, a pushing device is arranged outside the lifting position on the frame, and the pushing device is used to push the clamping rod with the material clamped from the lower end of the swing frame onto the lifting frame. Through the setting of the pushing device, the clamping rod can be well and stably entered onto the lifting frame, and the working stability is improved.

[0010] Further, the structure of the pushing device includes a pushing rod, and the pushing rod is connected to a horizontal cylinder. The pushing rod pushes the clamping rod in a manner parallel to the clamping rod. The structure of this pushing device is simple and convenient to set, and it can provide a stable pushing effect for the clamping rod.

[0011] Further, several supporting pieces are provided on the pushing rod at intervals along its length direction, and these supporting pieces all extend downward. The provision of such supporting pieces well adapts to the situation where the material is hooked onto the clamping rod, facilitating the overall pushing of the clamping rod and the material by the pushing device during operation, and improving the movement stability of the clamping rod and the material.

[0012] Further, the lifting frame includes two parallel lifting rods. A driving chain is provided on the lifting rod, and the driving chain protrudes above the lifting rod. The driving chain is used to directly support the clamping rod. By directly arranging the driving chain on the lifting rod and directly placing the clamping rod on the driving chain, the driving chain is used to drive the clamping rod to move forward on the lifting rod, facilitating the uniform distribution of the clamping rods on the lifting rod and enabling the clamping rod to automatically enter the material processing bin with the material, with high working efficiency.

[0013] Further, the lifting rod includes two parallel and spaced clamping plates. A connecting seat is respectively connected to both ends of the two clamping plates, and a sprocket is connected to the connecting seat. A strip-shaped upper supporting body and a lower supporting body are arranged in parallel and at intervals between the two clamping plates. The driving chain is connected to the two sprockets, and both the upper supporting body and the lower supporting body provide sliding support for the middle position of the driving chain. This structural form of the lifting rod facilitates the arrangement of the driving chain, has good movement stability of the driving chain on the clamping rod, is convenient for supporting the clamping rod, and can stably push the clamping rod to move forward on the lifting rod.

[0014] Further, the lifting mechanism includes a lifting chain. Both ends of the lifting chain are connected to the connecting frame, and the connecting frame is connected to the lifting frame; a limiting hook is provided on the machine frame, and the lower end of the limiting hook is deformed into an upward hook shape. A guiding piece is provided on the lower side of the connecting frame, and the guiding piece moves synchronously with the connecting frame. The guiding piece is in a U shape, and a guiding groove is formed on the guiding piece. The lower end of the limiting hook is inserted into the guiding groove and abuts against the connecting frame to realize the limit of the downward movement of the lifting frame. By setting the limiting hook, the limit of the lifting frame at the low position is realized, so as to prevent the clamping rod and the material from directly falling to the ground in case of an accident, thereby improving the use safety of the feeding device. Moreover, the limiting hook has good limiting stability for the lifting frame and is convenient for the lifting frame to stably receive the clamping rod released from the swing frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects: This feeding device is used to feed the material processing bin. Through the cooperation of the positioning bolts and the concave structure on the ground, the relative position of the feeding device and the material processing bin is fixed, so that the feeding device can accurately convey the clamping rod and the material to the corresponding position of the material processing bin, ensuring the operation efficiency. The cooperation positioning is realized through the setting of the positioning bolts and the concave structure, with a simple structure, fast operation speed and high operation efficiency. By setting the lifting frame and the lifting mechanism on the rack, the initial feeding position of the clamping rod and the material can be changed in the vertical direction, so as to well adapt to the setting form of the multi-layer shelves in the material processing bin and meet the actual working requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the internal structure diagram of this feeding device.

[0017] Figure 2 is the connection structure diagram of the positioning bolt and the power cylinder.

[0018] Figure 3 is Figure 2 exploded view of.

[0019] Figure 4 is the reference diagram of the use state of the pushing device.

[0020] Figure 5 is the exploded view of the lifting frame and its connection structure.

[0021] In the figure: 1, tobacco leaves; 2, workbench; 3, rack; 31, walking wheels; 32, horizontal cylinder; 33, vertical plate; 34, pushing rod; 35, supporting piece; 4, swing frame; 5, lifting rod; 51, connecting rod; 52, connecting plate; 53, driving chain; 54, connecting seat; 55, spacer block; 56, clamping plate; 57, lower supporting body; 58, upper supporting body; 6, connecting frame; 7, guiding piece; 8, limiting hook; 9, lifting chain; 10, power cylinder; 11, sleeve; 12, fixing bolt; 13, positioning bolt; 14, inner lining sleeve; 15, clamping rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In conjunction with the drawings in the specification, the material processing bin fixed-point feeding device is further explained by taking the processing of tobacco leaves 1 as an example, and the material processing bin is a flue-curing tobacco room. Generally, several layers of shelves are arranged in a flue-curing tobacco room, and the shelves are horizontally arranged rod-shaped structures, and two shelves arranged at the same height constitute a layer. Generally, a flue-curing tobacco room is built outdoors, and a work site needs to be built at the door of the flue-curing tobacco room, and the ground of the work site needs to be hardened, such as casting concrete, or laying bricks and stones. When the road surface is hardened, it is necessary to set a concave structure on the road surface, and the setting position of the concave structure should refer to the specific size of the feeding device and the size of the flue-curing tobacco room. The concave structure can be a pre-buried hollow cylinder, or it can be in the form of a hole set on the hard road surface. The purpose of setting the concave structure is to realize the positioning of the feeding device, so that when feeding into the flue-curing tobacco room, the position of the feeding device is fixed at a fixed point.

[0023] The structure of the feeding device includes a frame-type frame 3, which is constructed of profiles. A lifting position is formed on the frame 3. The so-called lifting position is a spatial concept, which is a space formed on the frame 3. A lifting mechanism is provided on the frame 3, and the lifting frame is transmission-connected with the lifting mechanism. Driven by the lifting mechanism, the lifting frame can be lifted and lowered in the space corresponding to the lifting position. The space covers the heights of different layers of shelves, so that the materials can be transported to the shelves on different layers in the tobacco flue-curing room through the lifting frame. The lifting height of the lifting frame can be determined by the running time of the motor in the lifting mechanism to realize the alignment of the lifting frame to the shelves on different layers; or photoelectric switches, travel switches, position sensors, etc. can be set on the shelves on different layers to sense the height position of the lifting frame, so as to realize the accurate alignment of the lifting frame and the shelf.

[0024] The lifting frame is provided with a plurality of placement positions for the clamping rod 15 to be placed. The placement positions are not fixed. The position corresponding to the clamping rod 15 placed on the lifting frame is the placement position. There are a plurality of placement positions, which means that the lifting frame can accommodate different numbers of clamping rods 15. The clamping rod 15 is used to clamp and hang materials. The clamping rod 15 is a split structure, generally including two monomers, one of which is formed with a comb-like structure, and the other is a rod-like structure. The two monomers are provided with mutually engaging structures. The strip-shaped tobacco leaves 1 are arranged into a row. The two monomers are engaged together from both sides of the root of the tobacco leaves 1. The comb-like structure penetrates the root of the tobacco leaves 1. After the position of the clamping rod 15 is raised, the tobacco leaves 1 can be clamped and hung on the clamping rod 15.

[0025] The capacity of a tobacco curing barn for tobacco leaves 1 is limited. Generally, a tobacco farmer needs to build several tobacco curing barns to cure the tobacco leaves 1 in batches. And this feeding device generally corresponds to several tobacco curing barns, which involves the problem of the movement of this feeding device. Therefore, a traveling structure for the frame 3 to travel is provided at the lower end of the frame 3. The traveling structure is generally traveling wheels 31. Generally, the feeding device is moved between different tobacco curing barns by manual pushing to adapt to the positions of different tobacco curing barns. In order to achieve fixed-point feeding for the tobacco curing barn, a power structure is provided on the frame 3. The power structure can be a cylinder, a manual hydraulic cylinder, or other manual transmission mechanisms. Figure 2 , 3 As shown in 3 , the power structure is a power cylinder 10. A positioning bolt 13 is connected to the power cylinder 10. The power cylinder 10 can cause the positioning bolt 13 to extend downward and be inserted and matched with the concave structure on the ground to achieve the positioning of the frame 3. There can be multiple power cylinders 10, and each power cylinder 10 is respectively connected with a rod-shaped positioning bolt 13.

[0026] The power cylinder 10 is vertically arranged at the bottom end of the frame 3. The positioning bolt 13 is fixedly connected to the piston rod of the power cylinder 10 and extends downward from the frame 3. A hollow sleeve 11 is fixedly connected to the power cylinder 10, and the sleeve 11 also extends downward from the frame 3. The positioning bolt 13 is coaxially and clearance-fitted in the sleeve 11. An inner lining sleeve 14 is provided on the inner side of the outer end of the sleeve 11. The inner diameter of the inner lining sleeve 14 is smaller than the inner diameter of the sleeve 11. The inner lining sleeve 14 is fixedly connected to the wall body of the sleeve 11 by fixing bolts 12. The inner lining sleeve 14 and the sleeve 11 are coaxially and spaced apart. The positioning bolt 13 is clearance-fitted in the inner lining sleeve 14, and the positioning bolt 13 can axially slide relative to the inner lining sleeve 14.

[0027] This feeding device is a multifunctional device, which can realize both feeding and clamping. A feeding station is formed at the front end of the frame 3, and a workbench 2 is provided at the feeding station. Tobacco farmers put the collected green tobacco leaves 1 on the workbench 2 for sorting, and clamp the tobacco leaves 1 through a split clamping rod 15. When clamping the tobacco leaves 1, a top-pressing mechanism, such as a top-pressing cylinder or a lever-type pressing structure, can be used to clamp the tobacco leaves 1 with the clamping rod 15. A swing frame 4 is movably provided on the frame 3, and the upper end side of the swing frame 4 is hinged on the frame 3. The lower end side of the swing frame 4 is generally separated and provided with at least two movable clamping structures. After the tobacco leaves 1 are clamped, the clamping structure clamps the clamping rod 15 from the end of the clamping rod 15. The clamping structure can be a movable clamping claw or a fork-shaped structure connected to the cylinder. Driven by the cylinder, the fork-shaped structure moves toward the clamping rod 15, thereby forking the clamping rod 15 to the swing frame 4. When the clamping rod 15 needs to be released, the cylinder drives the fork-shaped structure to retract, and the fork-shaped structure is disengaged from the end of the clamping rod 15, thereby creating conditions for the release of the clamping rod 15. Driven by the swing cylinder, the swing frame 4 transports the clamping rod 15 with the material clamped at the loading station to the lifting position, and allows the clamping rod 15 to enter the resting position on the lifting frame. In order to facilitate the clamping rod 15 to enter the lifting frame stably, a pushing device is provided on the frame 3 at the outer side of the lifting position. The pushing device is horizontally arranged and applies force horizontally. The pushing device is used to push the clamping rod 15 with the material clamped from the lower end of the swing frame 4 to the lifting frame. Before the clamping rod 15 enters the lifting frame, the lifting frame is at the end position of the swing amplitude of the swing frame 4. A travel switch, a position sensor, and a photoelectric switch can be set at this position to control the operation of the lifting mechanism, so that the lifting frame can be in place in advance, so that the pushing device can smoothly push the clamping rod 15 with the tobacco leaves 1 onto the lifting frame.

[0028] The structure of the pushing device includes a pushing rod 34, which is arranged along a direction perpendicular to the forward direction of the clamping rod 15. A vertical plate 33 is arranged on the frame 3, and the pushing rod 34 is connected to a horizontal cylinder 32, which is fixed to the plate 33. The horizontal cylinder 32 can also be directly fixed to the frame 3. After the clamping structure at the lower end of the swing frame 4 is disengaged from the clamping of the clamping rod 15, the pushing rod 34 pushes the clamping rod 15 in a manner parallel to the clamping rod 15, so that the clamping rod 15 slides smoothly onto the lifting frame. In order to adapt to the existence of the tobacco leaves 1, several supporting plates 35 are arranged on the pushing rod 34 at intervals along its length direction, and these supporting plates 35 all extend toward the lower side. When the clamping rod 15 is pushed, the pushing rod 34 conflicts with the clamping rod 15, and these supporting plates 35 conflict with the tobacco leaves 1, thereby achieving the simultaneous pushing of the clamping rod 15 and the tobacco leaves 1 as a whole.

[0029] The lifting frame includes two lifting rods 5 arranged in parallel, and a driving chain 53 is arranged on the lifting rod 5. The driving chain is wrapped around the outer periphery of the lifting rod 5. After the driving chain 53 is set in place, the driving chain 53 protrudes to the upper side of the lifting rod 5. After the clamping rod 15 enters the lifting rod 5, the clamping rod 15 is directly placed on the driving chain 53. The motor drives the movement of the driving chain 53, so that the clamping rod 15 is placed on the resting position with a suitable density. The lifting rod 5 is a split structure, which is composed of multiple components connected together. The lifting rod 5 includes two clamping plates 56 arranged in parallel and spaced apart. A block-shaped connecting seat 54 is respectively connected at both ends of the two clamping plates 56. A sprocket is rotatably connected to the connecting seat 54, and the sprocket is located at both ends of the lifting rod 5. A strip-shaped upper support body 58 and a lower support body 57 are arranged in parallel and spaced apart between the two clamping plates 56. The lengths of the upper support body 58 and the lower support body 57 are nearly equal to the length of the clamping plates 56. The two lifting rods 5 are respectively connected to a connecting plate 52, and the cross section of the connecting plate 52 is in the shape of an inverted "J". The connecting plate 52 is connected and fixed to the connecting rod 51 of the profile structure. The lifting rod 5, the connecting plate 52 and the connecting rod 51 are usually of equal length. After the clamping rod 15 enters the lifting rod 5, the end of the clamping rod 15 will be inserted into the space formed on the connecting plate 52 with a gap. The driving chain 53 is connected to two sprocket wheels, and the upper support body 58 and the lower support body 57 both provide sliding support for the middle position of the two ends of the driving chain 53. In order to improve the overall firmness, a number of spacers 55 are also arranged between the two clamping plates 56. The two end faces of these spacers 55 are respectively against the inner surfaces of the two clamping plates 56, and the connection and fixation with the spacers 55 are achieved by passing the clamping plates 56 through the connecting bolts.

[0030] The lifting mechanism can be a top-lifting cylinder or a screw mechanism. As shown in the figure, the lifting mechanism includes a lifting chain 9. Sprocket wheels are respectively arranged at the upper and lower ends of the lifting position on the frame 3. A lifting chain 9 is connected to the two sprocket wheels. The two ends of the lifting chain 9 are connected to the connecting frame 6, and the connecting frame 6 is connected and fixed to the outer surface of the connecting plate 52. A limit hook 8 is arranged on the frame 3, and the lower end of the limit hook 8 is deformed into an upward hook shape. A guide piece 7 is arranged on the lower side of the connecting frame 6. The guide piece 7 is directly fixed to the lifting chain 9, and the guide piece 7 moves synchronously with the connecting frame 6. The guide piece 7 is in a U-shaped shape, and a guide groove is formed on the guide piece 7. The lower end of the limit hook 8 is inserted into the guide groove and abuts against the connecting frame 6 to achieve the limit of the lifting frame when it moves downward. The limit can be used to prevent the lifting frame from falling, or to make the lifting frame stably stay at the end of the swing amplitude of the swing frame 4 so that the lifting frame can receive the clamping rod 15.

Claims

1. A fixed-point loading device for a material handling warehouse, comprising a frame, a lifting position formed on the frame, a lifting mechanism provided on the frame, the lifting frame being in transmission connection with the lifting mechanism, and the lifting frame being able to be lifted and lowered at the lifting position under the drive of the lifting mechanism, characterized in that: The lifting frame is formed with a plurality of placement positions for clamping rods to be placed, and the clamping rods are used to clamp and hang materials; the lower end of the frame is provided with a walking structure for the frame to move; a power structure is provided on the frame, and a positioning bolt is connected to the power structure, and the power structure is used to promote the positioning bolt and the concave structure on the ground to be plugged and matched to achieve the positioning of the frame.

2. The material handling bin fixed-point feeding device according to claim 1 is characterized in that: The power structure is connected with a hollow sleeve, and the positioning bolt is coaxially inserted into the sleeve with clearance.

3. The material handling bin fixed-point feeding device according to claim 2 is characterized in that: An inner sleeve is connected to the inner side of the outer end of the sleeve, and the positioning bolt is inserted into the inner sleeve with a gap.

4. The material handling bin fixed-point feeding device according to claim 1, characterized in that: A loading station is formed at the front end of the frame, and the loading station is used to realize the clamping of the material by the clamping rod; a swing frame is movably provided on the frame, and a movable clamping structure is provided at the lower end of the swing frame. The clamping structure is used to clamp the clamping rod, and the swing frame is used to transport the clamping rod with the material clamped at the loading station to the lifting position and into the shelf position.

5. The material handling bin fixed-point feeding device according to claim 4 is characterized in that: A pushing device is provided on the frame at the outer side of the lifting position, and the pushing device is used to push the clamping rod with the material clamped and hung from the lower end of the swing frame to the lifting frame.

6. The material handling bin fixed-point feeding device according to claim 5, characterized in that: The structure of the pushing device comprises a pushing rod, which is connected to a horizontal cylinder and pushes the clamping rod in a manner parallel to the clamping rod.

7. The material handling bin fixed-point feeding device according to claim 6, characterized in that: A plurality of supporting plates are arranged at intervals on the push rod along the length direction thereof, and the supporting plates all extend toward the lower side.

8. The material handling bin fixed-point feeding device according to claim 1, characterized in that: The lifting frame comprises two lifting rods arranged in parallel, on which a driving chain is arranged. The driving chain protrudes to the upper side of the lifting rod, and the driving chain is used to directly support the clamping rod.

9. The material handling bin fixed-point feeding device according to claim 8, characterized in that: The lifting rod includes two clamping plates arranged in parallel and at intervals, a connecting seat is connected to each end of the two clamping plates, a sprocket is connected to the connecting seat, and a strip-shaped upper support body and a lower support body are arranged in parallel and at intervals between the two clamping plates. The driving chain is connected to the two sprockets, and the upper support body and the lower support body both provide sliding support for the middle position of the driving chain.

10. The material handling bin fixed-point feeding device according to claim 1, characterized in that: The lifting mechanism includes a lifting chain, both ends of the lifting chain are connected to the connecting frame, and the connecting frame is connected to the lifting frame; a limit hook is provided on the frame, and the lower end of the limit hook is deformed into an upward hook shape, and a guide piece is provided on the lower side of the connecting frame, and the guide piece moves synchronously with the connecting frame, the guide piece is in a U-shape, and a guide groove is formed on the guide piece, and the lower end of the limit hook is inserted into the guide groove and abuts against the connecting frame to achieve limiting the downward movement of the lifting frame.

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